Off Grid, Author at Off-Grid

Power To The People: How To Survive If The Power Goes Out

Power To The People - How To Survive If The Power Goes Out
Image © Ariel Celeste Photography, licensed from Shutterstock (#532886983)

Carl Sagan once remarked that “we live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology”. Electricity it seems, that whole set of phenomena bundled with electromagnetism, is massive in that we all take it for granted — but almost no one understands just what it is, or quickly forgets after graduating from science class.

Almost all of us get our electricity from the “grid”. That is, the national infrastructure currently in place that wires energy produced elsewhere into our homes. But what if that electricity went out one day? We are so used to excessive light pollution that, during the Los Angeles blackout of 1994, terrified residents called 911 to describe a massive UFO hanging over the skyline — that “UFO” was actually the Milky Way galaxy, our galactic centre. They were seeing it for the first time.

Fortunately, we don’t all have to revisit the science textbooks to learn the fundamentals of power-generating technology. Years of technological advance have already greatly simplified — and made available — the right equipment to us.

In fact, an independent power supply is probably one of the easiest aspects of self-sufficiency. In the event the power goes out, here are some things you can do to be self-sufficient:

Harness the power of the sun

The most efficient and best thing for power self-sufficiency is to capture the infinite resource that is sunlight and convert it into energy. In recent years, solar technology has come on leaps and bounds. Solar panels now work pretty efficiently —  even when it is grey and overcast. Plus, solar panels are remarkably resilient. Take good care of one, and it should last well over a decade. And even then, it is likely that you will only have to replace the panels.

Related: Video Tutorial: Make Your Own Solar Panel

There are many different types of solar panel, but mounted-roof solar panels are especially handy. They are free-standing models, and you can re-orientate them to the sun as it moves across the sky for maximum energy absorption. Briefcase solar panels are also convenient. They look like their namesake, and open up like flowers to capture the sun’s rays. Both models can be packed away to prevent theft, which is especially important.

Adjusting to a solar-powered life

A life off of the grid does come with sacrifices. Thankfully, they aren’t great sacrifices — and there are lots of alternatives. For two people, a single 100-watt solar panel should be enough to provide a bit of energy for a life in the slow lane, one that’s wired into two 110-amp leisure panels.

That is, for a life without TV, a microwave oven, coffee-maker or toaster. But you can just as easily cook food and boil water on a wood stove. Lighting does not have to be a problem if you can swap out any LED-bulbs for their halogen cousins. And, assuming television would ever come back online, you could easily watch it on a laptop, after using solar energy to charge up the battery.

If the main energy grid ever goes down, solar panels should be your first and foremost source of power. You will soon learn to adjust to their capabilities, and probably quite easily. There are a few habits to get into: one being to keep everything battery-charged during the day, and not letting the battery voltage drop too sharply. In fact, the only drawback of solar panels is that their battery levels are quite expensive, but for the most part solar panels are a wonderful invention.

Gas systems — for high and low temperatures

Off-Grid Power
Images – cc0

After solar, gas is the next most important source of energy. Though in a post-grid world it might be hard to get a hold of any gas cylinders (which is why it is important to prepare, and stock up).

We burn gas in the winter to keep us warm, but we also use it in the summertime to keep our refrigerators running. Without mentioning any brands it is important to have a gas system of about two cylinders, with a third emergency cylinder as backup.

Two good-sized cylinders should last about three-weeks, based on average consumption. But in the winter — and especially if you live in a part of the world that’s prone to freezing — it might take about 34 litres of mostly propane gas to keep warm for one week above sub-zero. So keep that in mind.

It is hard to say how much exactly, but you may have to refill your gas cylinders about 10 times a year. Gas systems don’t cost the Earth, fortunately, but it is best to shop around for the best deals now, and stock up in case anything does happen to the power grid. 

Preparing for a low-consumption lifestyle

Aside from storing gas cylinders and mounting solar panels, there are a few other things you can do to make everything run more smoothly.
The first thing is to make sure you have an inverter on hand. What this crucial device does is convert direct-current (DC) electricity into alternating-currents (AC). Because DC is the industry standard, the likelihood is your solar cells and batteries will need an inverter to convert the energy output into AC.

It must be noted that different inverters are required for different energy demands, though. For example, a 75-watt inverter is more than enough to charge and handle little things such as camera batteries, or an electric shaver. But a 100-watt inverter will be needed for powering larger things, such as a laptop. It would also be a good idea to install 12-volt sockets to abet the lower consumption of power, whether you are living in a fixed-abode, or on the road in a motorhome.

The second most important thing is to stock up on power packs, charge them regularly and keep them charged. And finally, a bio-ethanol stove can act as a makeshift cooker (and even a heater) in case the gas system ever fails. Such a simple investment could make a huge difference in your quality of life down the road. 

Backup Generators

Backup generators are noisy and smelly, meaning they can attract unwanted attention. But they are useful on long, dark nights where the solar panels are struggling to get the necessary power. Turning them on will eat into your gas supply, though. A good generator — again without mentioning brands — will last over a decade if maintained properly, and if you don’t use too much power, you might even be able to get away with a 1000-watt or even 500-watt generator. 

Final Thoughts

Thanks to technological advancements, it has never been easier to be power self-sufficient. It can be expensive — well the gas cylinder bills can be — but it is relatively easy to switch to a calmer, slower way of life that uses much less energy, free from the whims of the national grid. 

Take care of everything, and you should have few problems, with only a few inconvenient sacrifices. 


This Author:
Neil Wright is a copywriter and researcher. He has an interest in travel, science and the natural world, and has written extensively about off-grid living in the UK on his motorhome website.

Bitcoin Used An Estimated 200 Million Kilowatt Hours Of Electricity Yesterday

graphic –

We just found this eyebrow-raising factoid courtesy of for Sept 20th, 2019 – and it was too thought-provoking not to share.

Bitcoin depends on enormous computation power, which is responsible for this astonishing level of energy use. There are racks upon racks of bitcoin mining computers performing trillions upon trillions of proof of work calculations.

On a yearly basis that would amount to 73 terawatt hour, which is the equivalent of Austria’s electricity consumption.

In other words, we just added an Australia-sized amount to our current global energy demands. And you have to ask yourself is that really very smart?

Now whether you believe the price is going to go up, down, sideways or in circles… Bitcoin is about as eco-UNfriendly as it could be.

Don’t get me wrong, I love the idea of near-instantaneous secure money transfers around the world. But there are other cryptocurrencies that do not require this staggering electrical consumption.

As for decentralization – no, not really. 1000 bitcoin accounts own 34% of the world’s supply. Is that really all that much different from the richest 1% (77 million people) owning half the world’s wealth? No, it’s WAY worse!!

No currency can truly level the playing field because there will always be those better positioned, more motivated and more skilled to take the lion’s share – which can then be used to increase that share still further.

We are going to look at survival assets soon, keep an eye out for that post.

Off Grid

How To Tell If Gold Is Real (Free In-Depth Tutorial!)

How To Tell If Gold Is Real
graphic – Images – amazon


Gold is an important topic to have some knowledge of if you are interested in investment, numismatics, prepping, survivalism and off-grid living related topics. If the grid goes down and electronic fund transfers cease, or if there is a run on the banks, then gold will be of paramount importance. Gold is still regarded as the most tangible, reliable and durable form of wealth in the world. It is portable, divisible, durable, does not rust or rot and can generally be bought or sold anywhere in the world.

There are many tests for gold and quite a few of them eliminate some but not all fakes: What is needed is a comprehensive resource and, depending on the circumstances, more than one type of test will be required. So with this page, we have attempted to build the “mother ship” – a giant list of all the possible ways to tell if gold is real, together with descriptions of their limitations. Bookmark this page and keep it as a reference for the future!

Of all the subjects one can possibly research online, the subject of how to tell if gold is real must rank as one of those highest in either misinformation or partial truth. To illustrate the misinformation and folly that is out there – I have even read one statement that if gold jewelry sinks in a bucket of water, it must be real! This is very obviously false – almost all metals are heavier than water.

Important note – if you are examining gold of considerable value, the best way of all to ascertain whether it is real is to take it to a reputable professional jeweler, bullion dealer or antiques dealer, or to contact an assay office (most countries have these). A good jeweler / antiques expert will have the training and the “lookup charts” to decode accurately hallmarks on jewelry. Also a reputable jeweler will have testing kits to evaluate gold and of course the expertise to test it without causing damage. A jeweler may of course charge a fee for this service.

For “serious” scenarios, contact an assay office. This is an institution specifically set up to test the purity of precious metals. It is only assay offices that are legally permitted to apply hallmarks to gold, platinum or silver items, guaranteeing their purity.

As assay offices may be considered the greatest masters of evaluating gold, it is instructive to observe their methods, as these will be the ones of greatest accuracy.
We will also look at simpler methods which may be applied at home, with consideration of their accuracy and usefulness.

Tests For Gold

The first thing to note is that some methods of evaluating gold are more destructive than others: If one has a piece of fine jewelry, one wants to use the least destructive method possible; whereas if one has raw metal, this factor is not quite as important.

Basic Observations

A few keen observations will often give some good initial hints as to the genuineness of gold:

Source: First, gold bullion bars will very often (but not always) come with an assay certificate guaranteeing their purity. It is also recommended to buy gold bullion of one of the well known brands (typically major banks or well known mints), through an established bullion dealer. If you are buying a valuable gold coin, inquire about the provenance. This is the history of where the coin was originally purchased or discovered. If it comes with authentication such as proof of purchase through a major auction house or coin dealer, that is very beneficial.

Very valuable coins are also often “slabbed” – which means encased in plastic with a certificate of authenticity issued by one of the professional coin grading services such as PCGS. This gives an additional layer of protection that is hard to fake; the code number on the certificate can be checked against the database of the grading service. Smaller denominations of gold bars may also be encased in this manner; here is an example of a PAMP Suisse Gold Bar that can be seen for sale on Amazon:

PAMP Suisse Gold Bar
PAMP Suisse Gold Bar

Weight: Although not an absolute test, solid gold is heavy. (It has a specific gravity of around 19.2). A gold plated copper, iron, brass or silver item will simply not have the same weighty feel to it. However lead and tungsten are both heavy metals and there have been (very rare) reports of gold bars being hollowed out and filled with one of these cheaper metals. Typically, if you have purchased through a reputable dealer this will almost certainly not happen, and you will have a warranty.

Age means nothing: Remember that in the world of coins, forgery is a very ancient art, once considered such a serious matter that it was actually punishable by death in the old days – yet it still went on. So the fact that a coin is, or appears to be, very old, does not in itself guarantee that it is genuine.

Price: Apply the obvious maxim that if something seems too good to be true, it probably is. Watch out for fake coins on ebay. These can be purchased on the open market from – a good tip is to go to aliexpress and look at the fake coins that are for sale. You can then easily recognize that these are the fakes that come up on ebay; often they will use the exact same photo because they may even have the item sent directly from China, pocketing the difference in price. Let’s move on.

Hallmarks And Millesimal Fineness Marks

Hallmarks: Hallmarks are official marks applied to precious metal objects, denoting that their purity has been ascertained and approved. A true hallmark is not a manufacturer’s mark; it is the mark applied by the independent body or authority, typically at the national level:

Gold Hallmark
Hallmarks on the inside surface of a gold item

The hallmark indicates that the item has been assayed. It is highly illegal to falsify a hallmark and penalties are severe. Fraudulent hallmarks are uncommon but technically a possibility so additional tests may be advisable in doubtful cases.

Hallmarks can be compared to hallmark charts (which can be found online) and they will give much information about the age of the item and its origins.
Examine any hallmarks and other mint marks closely, with a magnifying glass or jeweler’s loupe (Amazon Link) if possible. A genuine hallmark will have a professional appearance – evenly stamped and detailed, whereas a fake mark made from a cast will appear untidy and lack detail.

Millesimal fineness marks: Not all precious metal items will have hallmarks. In addition to / instead of hallmarks, you may see a millesimal fineness mark.
This will be a small (or even tiny, depending on the size of the item) stamp of a three-figure number, which denotes the purity in terms of “parts out of one thousand” of pure metal. Thus a millesimal fineness mark of 833 indicates the metal was 0.833 pure. To obtain the “carat” figure, multiply this number by 24. So 0.833 x 24 = 20 carat.

Unlike hallmarks, which may only be applied legally by a governing body, a millesimal fineness mark may legally be applied by the maker of the item and should be used strictly to denote the purity of metal used in its manufacture; though it is ultimately possible that this mark is fraudulent, therefore it is not an absolute guarantee of purity. It is useful, but other tests should still be applied.

Interestingly, the numbers applied to gold, silver and platinum are typically different.

The numbers 375, 585, 750, 833 or 917 denote that the item is indicated to be gold, at purity denoted by the number. You will also see gold bullion bars at 999, 999.9 or similar (more on this below).

Silver items (which were perhaps later gold plated in an attempt to pass them off as gold), may be marked with 800, 830, 835, 875 or 925. Note that if the item is marked “sterling” or 925, it is almost certainly sterling silver that has been gold plated.

Note also 958, which was a number applied to Britannia silver.

And finally 950; typically applied to platinum. It’s very unlikely that you would see platinum plated in gold and passed off as such, due to the fact that platinum is almost as expensive as gold.

Coin Weights

“Milled” coins minted in the modern era (since coin milling began in the 17th century) were of very precise weight, which can be ascertained by weighing. Note that if a coin is worn from circulation, the weight will be very slightly less than that of the uncirculated coin. Official coin weights can be obtained from coin collector catalogues and this is a simple test – if the weight is way off, then the coin is certainly fake. That does not necessarily mean that if it has the correct weight, it is genuine. But weight will weed out the majority of fakes, especially of gold and silver coins which are faked using cheap metals.

Precision scales can be obtained for very reasonable cost these days. Here is a 50g x 0.001g scale (weighs up to 50 grams at precision of 0.001 gram, which is more than sufficient for coin weighing!) I bought on Amazon for under $20 – and found to be very accurate. It comes with a 50-gram weight so that its precision can be tested prior to use. It is advisable also to obtain a very accurate set of precision weights so that these can be used to test scales at different weights on an ongoing basis.

Gold Bullion Bars

Gold Bullion Bars will be marked with their weight, purity, manufacturer’s stamp and typically with a serial number, which works in a similar way to the serial number on
banknotes – enabling duplicate bars to be detected as there should only be one bar of that type with any given serial number in existence! It is advised to purchase and sell gold bullion bars through accredited bullion dealers, who will provide guarantees.

Gold Bullion Bars
Gold Bullion Bars

Gold bullion bar purity will be denoted with a numerical stamp. Often seen will be 999 – “three nines fine” – which means the item is 99.9% pure gold. You may also see 999.9 (higher purity, 99.99% pure gold). You may also see 995,0 as in the example above, which means of course that the bar is 99.5% pure gold. Note however that if it is marked 1 Kg GOLD then it should legally contain exactly one kilogram of gold, regardless of the purity – meaning that the actual weight of the bar on the scales may be slightly higher. So for bullion purposes, the weight of gold that is denoted on the bar is the critical factor and the purity is somewhat irrelevant.

Gold Bar Fineness
Gold Bar Millesimal Fineness Marking 999.9 Denoting “four nines” Purity

Depending on their country of origin, gold bar weights will be denoted in various systems including metric and imperial. The famous “chocolate bar shaped” gold bars (above) you see in bank vaults and movie heists are what is known as “good delivery bars”. These are a global standard size used in international money transfers and are 400oz (25 pounds) in weight. They are still a preferred and highly trusted form of wealth utilized by banks and governments. When you hear about a nation’s gold reserves, it will typically be in the form of these bars. It’s strange to think that these most tangible and real representations of worldly wealth have never been seen or touched by most people and spend most of their lives in the dark, in high security vaults.

Note that the ounces denoted in bullion weights are troy ounces and it is important to know that there is a difference between a “troy ounce” and an ordinary or “avoirdupois ounce” – otherwise you will miscalculate the weight of your gold bar. Full details and conversion tables here: What is a troy ounce?

Gold Nuggets Or Fool’s Gold?

The first thing to note is that gold nuggets have a specific appearance, easily distinguishable from pyrite, aka iron pyrite, aka “fool’s gold”, once you know what you are looking for:

First here are two pictures of genuine gold nuggets. Note the ’rounded’ appearance of pure raw gold: No crystalline edges. This occurs because gold is naturally a relatively soft metal:

Gold Nugget
Gold Nugget

Gold Nugget Close-Up
Gold Nugget – Close-Up

Now here are two images of pyrite / fool’s gold. Note the crystalline structure and straight-line ridges in the composition. Pyrite may be seen in either cuboid, “framboid” (raspberry-like), or (less commonly) dodecahedral forms:

Cuboid Pyrite
Cuboid Pyrite

Pyrite Crystals
Pyrite Crystals

Observe also the hardness. Pyrite is much harder than gold and will scratch glass or a penny, whereas gold will not. (Pyrite has a hardness of around 6.0 to 6.5 (Mohs), Gold 2.5 to 3.0).

In old times, people used to bite gold to tell it from pyrite or other metals, as gold is soft enough to be marked by teeth. However this is not recommended for five reasons:

a) You could easily damage your teeth on a hard substance.
b) Other metals (such as lead) are also soft.
c) You might be biting something that has toxicity (lead again) or is unhygenic.
d) Gold nuggets may be soft, but manufactured gold items are often alloyed with other metals that are harder, rendering the alloy hard enough to damage your teeth.
e) A person may not appreciate you biting into their item of gold!

Sometimes you may see a rock with small golden veins or flecks in it and wonder whether it is real gold. Examine it under magnification: Gold’s “soft” rounded appearance will continue as you zoom in, whereas examining pyrite with a loupe (Amazon Link) will reveal a surface made of tiny cubes or similar polyhedral structures. If it has sharp, straight crystalline facets it is probably pyrite – although it is possible that a nugget may contain both gold and pyrite.

This final test of a gold nugget is a little drastic (and probably not recommended); you can also try hitting it with a hammer. (The solution to everything! 😉 ) Pyrite will shatter under a hammer, whereas gold is very malleable and will bend or flatten.

Touchstone Test / Chemical Test Kit

A touchstone is a small, typically inexpensive flat block of dark colored stone – for example slate. The stone has a finely grained surface, upon which true gold will leave a visible golden mark if rubbed against it. If the mark left is black, the sample is not gold but pyrite.

But – how pure is the gold? What’s interesting is that when different chemicals, such as nitric acid or aqua regia are applied to the mark left by the gold,
they will react differently depending on the purity of the gold. [1]

This test can be performed at home by purchasing and using a surprisingly inexpensive kit (for example this test kit on Amazon which costs only around $15-$20.) These kits contain small bottles of chemicals and a touchstone and will identify 10k, 14k, 18k, 22k gold, plus also platinum and silver. The test works by Tdropping a drop of the acid on the streak plate on the place where the gold has been rubbed. If the mark stays the same color, the gold is pure. If it turns yellow-orange, the gold may be less pure. Any other color denotes another metal. The touchstone should work well for raw gold nuggets.

The touchstone test has been used for thousands of years including, astonishingly, by the Indus Valley Civilisation in 3,500BC! [2]

The modern day touchstone test kits can identify different purities of gold – however this test alone is not infallible: If the item has a thick layer of gold plate and the metal underneath is not revealed, the touchstone test will only reveal the composition of the plated surface. See the section on gold plate below.

Streak Plate Test

An reliable, simple version of a touchstone test, which may be performed at home to evaluate gold nuggets, uses what is known as a streak plate. (Amazon link) This is simply an unglazed piece of white porcelain tile, perhaps a tile’s back surface that is not shiny. Gold will give a golden streak on the plate, pyrite a black streak. Streak plates are also used for identifying other minerals.

Nitric Acid Test

Note – this can damage the appearance of jewelry; use either on an inconspicuous area or on scrap gold only. To perform this test, make a scratch on the metal item using a nail file. Using a dropper, apply a very small drop of nitric acid to the metal. No reaction – gold (or false nitric acid!) Milky color – gold plated sterling silver. Green color – gold plated base metal.

Important safety note – nitric acid is a hazardous substance – highly corrosive, possibly fuming and can also be explosive under certain conditions. It can also be self-igniting when brought into contact with certain chemicals. It should only be handled by someone who has the requisite experience and lab safety equipment. I am not sure whether this chemical requires a license to handle these days in all locations, so please check.

X-Ray Fluorescence Test

This is one of the tests that may be performed by assay laboratories. It requires expensive, hi-tech equipment. The material is exposed to short wave X-rays and a computer spectrum reading will indicate the presence of not only gold but also other metals. This test is not recommended however for plated or surface treated items, as it will give a reading of the metal at the surface of the item. [3] [4]

Density Test

Pure gold has a known density, therefore if the volume of the gold object can be calculated accurately, (perhaps by submersion in water, although the water displacement would have to be calculated with extreme accuracy) the weight can be extrapolated from the volume and compared to the actual weight of the item. According to legend this test was the one used by the famous Greek scientist Archimedes, who was asked whether he could tell whether the King’s crown was pure gold without damaging the crown. However, a more elaborate version of this test, which uses a buoyancy principle now known as Archimedes Principle, is more likely to have been used, as it is more accurate and more simple to perform. [5]

Cupellation / “Fire Assay”

This is the most accurate of all the tests for gold. It is however destructive of the object being used (though the gold used is recoverable) so cannot be used for jewellery, rare coins or objets d’art. It is the method used internationally by the gold mining and refining companies and can ascertain the purity of gold ore. It is also used to assay gold bullion and when properly performed can have an astonishing accuracy – up to 1 part in 10,000.

This is a basic summary of the fire assay process: The sample is wrapped in a lead foil together with copper and silver. The sample is heated at 1650°F in a cupel (a porous pot) made of bone ash or magnesium oxide. Base metals will oxidise and absorb into the cupel. The product is then treated with nitric acid to remove silver. Precision weighing of all the components will ascertain the amount gold, silver and base metal in the sample. This method works best with high purity samples: If there is much base metal or ore in the sample, additional steps may be required for a complete reading – as the cupellation can only absorb a certain amount of base substance from the sample. [4][6]

The method used for fire assay is old in essence and it is fascinating to learn that it remains relatively unchanged since ancient times. In modern times the method differs only in detail from methods delineated by Agricola in his famous 1556 metallurgical treatise De Re Metallica.

How To Tell Gold Plate from Solid Gold

Now this is an important section. If gold plating is of high quality it can be difficult to tell from solid gold. A streak test will show gold either way! Here are a few additional checks that can be performed:

1) Look at the sale price of the item.
If it is less than the current price per troy ounce of gold, it is almost certainly not solid gold.
(Why would anyone be selling real gold at less than the spot price when they can immediately sell it for a price very close to the spot price to a scrap gold buyer? They wouldn’t!)

2) Look for marks identifying the gold as gold plate:

100 Mills Gold Bar
100 Mills Gold Bar

FAKE! This bar is gold plated only!

See how it is intentionally designed to look like a genuine gold bullion bar, even to the point of being seen cased in plastic – and also weighing one troy ounce. But the wording gives it away. It is plated in 999 pure gold, to a depth of “100 mills” thickness (whatever that actually means, which is questionable). Note that these are borderline legal to sell, with the seller counting on the “100 Mills” wording which indicates that they are not solid gold. But the buyer must know what this means! These items are novelties, not bullion, and are essentially worthless.

If you see the markings RGP (“Rolled Gold Plate”), Clad, Filled, Layered. GE, HGE, H.G.E., GF, or 1 /10 , 1 /20 , or 1 /30 then it is gold plate. Also if you see anything with “100 Mils”, “100 Mills” or “5 Microns” on it, on either the item or the sales description, this is a description of the plating and means that the item is plated or clad to that depth. The core is either silver, brass or some other cheap metal. Similarly, if you see the words “Gold Clad”, “Layered Gold” or (obviously) “Gold Plated” in the description, then the item is not solid gold.

Beware however of the mark “KP” – for example 14KP – it does not mean “14 Karat plated”, but means “14 Karat Plumb”, which means “14 Karat exactly, no more, no less – the item is (claimed to be) solid gold.

3) Look for areas where the gold plate may have worn off, such as prominent edges or clasps. If jewelry is old and has seen much use, it will have had some wear and gold, being a soft metal, can wear down over time simply through friction. If another colored metal shows through in a prominent place, the item is plated. Green or black corroded spots will also indicate the presence of other metals underneath: Pure gold does not tarnish in these colors but stays gold-colored.

4) Run a magnet over the gold. If the item contains iron or nickel, it will be attracted to the magnet, whereas pure gold and many other metals will not. So while this test may be useful in sifting out some fakes, “just because it passes the magnet test, doesn’t mean it is pure gold”.

5) Finally, if needed, apply the density test as outlined above.


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Link: How To Tell If Gold Is Real – Full Tutorial

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How To Tell If Gold Is Real
Graphic – Images – PD


[2] Bisht, R. S. (1982). “Excavations at Banawali: 1974-77”. In Possehl, Gregory L. (ed.). Harappan Civilization: A Contemporary Perspective. New Delhi: Oxford and IBH Publishing Co.. pp. 113–124.