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 Replies: 10 / Views: 1,415 |
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New Member
United States
27 Posts |
I These In The Bottom Of My Sort Pile.  *** Moved by Staff to a more appropriate forum. *** |
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Pillar of the Community
 United States
1949 Posts |
Yes, they are all Chinese, Fatman dollar appears to be year 3 (1914)
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Moderator
 United States
34423 Posts |
Remember that awesome job that you did on the pics of the French 25 Centime? Doing the same thing here would be super-awesome. Just focus on one coin at a time and then show both the obv and rev of the coins. That makes it much easier to identify them!
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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New Member
 United States
27 Posts |
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Valued Member
Canada
117 Posts |
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Bedrock of the Community
Canada
11922 Posts |
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Pillar of the Community
United States
5362 Posts |
The 1913 Fat Man dollar needs to be closely checked to insure it is not a numismatic forgery. The vast majority turn out to be fakes. Many recently made copies are magnetic - those are all forgeries. Check the coin with an iron type ferro-magnet. The coin must be 890 fine silver and should weigh about 26.30 to 26.38 grams depending on the original weight before wear. The specific gravity of the coin must measure 10.28. These are the minimum standards needed to prove the coin is genuine. If it passes these tests and the ring test (does it ring like a Morgan dollar) same tone and duration - I would get this one certified. |
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New Member
United States
27 Posts |
Wait, there are 1913 fat man dollars? I know from my reading that this guy started putting his face on money from the day he took power. Still, I thought the earliest date was 1914. I've been told that its in range, not magnetic and doesn't ring well when compared to a morgan. But ring it did.
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Valued Member
Canada
117 Posts |
3Yr is 1914. Fat man dollar is very tricky b/c it has many different versions and years. Different year has different purity and ping sound. Magnetic and Ping tests are basic steps but it is not guarantee since the profit margin is great, some people are willing to make fake fat man coins with 90% silver.
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Valued Member
Uruguay
217 Posts |
Quote:
The coin must be 890 fine silver and should weigh about 26.30 to 26.38 grams depending on the original weight before wear. Are you sure about this? I think there are 1914 "fat man" dollars weighting more close to 26.9 gs. too. |
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Pillar of the Community
United States
1915 Posts |
Chinese silver coins have a published theoretical weight, but in reality, there is a low, a high and an average.
Also true seemingly older coins can and are being made with good silver. So even being silver may not mean the coin is genuine.
If you're a faker and have $30 in silver and a good process, why not make an imitation of a coin that can sell for 4 or 6 times as much?
I did pick up on swamperbob's comment about the ring test tone and duration.
What caught my attention is the fact that he included "duration"- which tells me he knows a lot about what he says.
I've measured and recorded "ping tests" among good and bad coins and came across one case where the pitch or tone between the coins were identical. But the genuine coin duration was much longer while the counterfeit coin dissipated much quicker. It's easy to see and hear using a spectrum analyzer and sound recorder.
Just some tools of the trade that make the study of fakes more interesting.
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Replies: 10 / Views: 1,415 |
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Posted 01/15/2017 7:40 pm
