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 Replies: 21 / Views: 3,750 |
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Bedrock of the Community
United States
20753 Posts |
Rather than damaging that thing, why not just try some other ideas.
1. Go to the World coin forum here and ask there.
2. Go to Google and type in foriegn coins or Russian coins. Might be a forum for those.
3. Have you tried other forum like PCGS or NGC?
4. Have you tried a coin store?
5. Have some fun and try to find someone in Russia on the internet and ask them.
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Valued Member
United States
458 Posts |
Dont damage the coin! Figure it out the hard way.
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Pillar of the Community
United States
1840 Posts |
Have you tried the ring test? Silver has a distinctive resonance. Try balancing the medal on a gloved finger and tap the side with a pencil. Then try the same using a coin with known silver content for comparison. I use a well circulated Morgan dollar when doing this. It may not be a perfect method, but it is much more gentle than a scratch test. |
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Pillar of the Community
United States
1796 Posts |
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Bedrock of the Community
United States
20753 Posts |
A long time ago what was called Ham Radios were really popular and with one you could talk to people all over the world. Why not try using the internet to find someone in places like Hungary, Russia, etc. that may well know all about that thing.
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Pillar of the Community
Russian Federation
5179 Posts |
Came in to say: I'm from Russia, and I apparently know even less about this Hungarian medal than you do  Seriously, how did Russia manage to enter the question? This is an obviously Hungarian medal that doesn't have anything to do with Russia (as far as I can tell). Completely unrelated: the link you posted said that a diamagnetic test involves a strong button magnet. As such, I have two questions: 1) does it have to be a button magnet, or would a spherical one do, and 2) how strong (in terms of liftable steel) does it have to be (i.e. is 200-300 grams enough)? |
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Pillar of the Community
United States
2120 Posts |
Might want to rinse it with Acetone (dangerous stuff, read about saftey with it first) since you have likely gotten finger oils on the face of the coin. If left for too long, it will damage what could be a valuable coin/medal.
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Pillar of the Community
United States
1796 Posts |
@january1may - You can do a diamagnetic test with a larger magnet, but there needs to be some means to slide things around. Diamagnetism is a phenomena where a material exhibits a direct opposite magnetic force if -- and only if -- it's in motion relative to a strong magnetic field. A spherical magnet could work if it's pull is closer to 500 g to 1 kg, which is easy to manage if it's neodymium.
If it's a button (1 cm diameter) you can put the coin in a flip and simply slide the magnet down the outside of the flip. If it's a large magnet, you'll have to slide the coin on the magnet somehow which is harder but doable (with some jiggery-pokery).
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Pillar of the Community
Australia
7096 Posts |
Quote:
A spherical magnet could work if it's pull is closer to 500 g to 1 kg, which is easy to manage if it's neodymium.
How about these, old computer hard drives have these in them. That's a full sized axe not a hatchet    |
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Pillar of the Community
United States
1620 Posts |
There is a hand held machine that tests for gold silver etc its all digital and you just touch the machine on what your testing
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Bedrock of the Community
United States
17884 Posts |
Specific gravity test? It won't damage the piece and could tell you a lot.
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Pillar of the Community
United States
1796 Posts |
Quote:
That's a full sized axe not a hatchet That'll do! |
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Pillar of the Community
Russian Federation
5179 Posts |
Quote:
@january1may - You can do a diamagnetic test with a larger magnet, but there needs to be some means to slide things around. Diamagnetism is a phenomena where a material exhibits a direct opposite magnetic force if -- and only if -- it's in motion relative to a strong magnetic field. A spherical magnet could work if it's pull is closer to 500 g to 1 kg, which is easy to manage if it's neodymium.
If it's a button (1 cm diameter) you can put the coin in a flip and simply slide the magnet down the outside of the flip. If it's a large magnet, you'll have to slide the coin on the magnet somehow which is harder but doable (with some jiggery-pokery). OK, what I have is a bunch of neodymium spherical magnets straight out of Neocube - around 5 mm diameter each and with just under 500 g of pull. Probably not enough  (In fact, just tested this with an 1923-S Peace dollar for which I have no reason to doubt the authenticity and an 1841 large cent which even if somehow not authentic certainly isn't silver. The results were similar enough that I couldn't tell the difference... guess I'm stuck looking for a better magnet  ) |
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Valued Member
United States
227 Posts |
Ahhhh I cringed when I saw the pic of you holding it with your thumb and finger on the faces!
Definitely, definitely do not scratch it or cut it in half. Find out first please! I'm sure you can find a way to do the diamagnetic test.
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Valued Member
United States
329 Posts |
could you measure it's volume in ml compared to it's toal weight to find out it's density? Density of silver is 10.49 g/ml
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Replies: 21 / Views: 3,750 |
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First Page
Posted 06/03/2012 8:59 pm
