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<p>[QUOTE="Vess1, post: 625074, member: 13650"]jakal,</p><p> </p><p> I don't know anything about these types of coins but I can tell you that if you think they truly are gold, you can buy a gold purity testing kit on ebay for around $20.00. I bought one and they work good. It's the same thing a jeweler would use. </p><p> </p><p> All the kit is, is a piece of stone with fine grit, and a few bottles of chemicals. You would rub the edge of one of these coins lightly on the stone, leaving behind a very small, but visible line of gold flakes. Then you just put a drop of 22k solution on the line. Some loose flakes may come up in the drop but if you can still see the line, it is 22k gold. If the line immediately turns brown and dissolves away leaving a clear spot, it is not 22k grade.</p><p> </p><p> You can try each k rating down the line. Next you could try 18,14, and finally 10. If the 10k dissolves the line, then you know it's very impure gold if it's gold at all.</p><p> </p><p> This is a very simple and cheap test. How about getting one and checking back with us, eh?</p><p> </p><p> It's not a matter of trusting you. It's just that most people here are well educated and we've seen so many of these Cinderella stories come and go where somebody thought they really had something rare, and then it was proven to be fake. There are counterfeits of everything out there. The Chinese are counterfeiting everything, legally these days. Including common silver quarters and dimes. So there's no reason to believe that somebody wouldn't have or couldn't have counterfeited these crudely designed (compared to modern standards) ducats over the last 4 centuries. </p><p> </p><p> It has also been brought to my attention in the past that weights of coins had much closer tolerances hundreds of years ago than they do today. In other words, there is no way a real coin that was supposed to be 3.5 ended up being an extra .18 worth of gold on accident. It just would not have happened. I think that is the point GD is trying to make.[/QUOTE]</p><p><br /></p>
[QUOTE="Vess1, post: 625074, member: 13650"]jakal, I don't know anything about these types of coins but I can tell you that if you think they truly are gold, you can buy a gold purity testing kit on ebay for around $20.00. I bought one and they work good. It's the same thing a jeweler would use. All the kit is, is a piece of stone with fine grit, and a few bottles of chemicals. You would rub the edge of one of these coins lightly on the stone, leaving behind a very small, but visible line of gold flakes. Then you just put a drop of 22k solution on the line. Some loose flakes may come up in the drop but if you can still see the line, it is 22k gold. If the line immediately turns brown and dissolves away leaving a clear spot, it is not 22k grade. You can try each k rating down the line. Next you could try 18,14, and finally 10. If the 10k dissolves the line, then you know it's very impure gold if it's gold at all. This is a very simple and cheap test. How about getting one and checking back with us, eh? It's not a matter of trusting you. It's just that most people here are well educated and we've seen so many of these Cinderella stories come and go where somebody thought they really had something rare, and then it was proven to be fake. There are counterfeits of everything out there. The Chinese are counterfeiting everything, legally these days. Including common silver quarters and dimes. So there's no reason to believe that somebody wouldn't have or couldn't have counterfeited these crudely designed (compared to modern standards) ducats over the last 4 centuries. It has also been brought to my attention in the past that weights of coins had much closer tolerances hundreds of years ago than they do today. In other words, there is no way a real coin that was supposed to be 3.5 ended up being an extra .18 worth of gold on accident. It just would not have happened. I think that is the point GD is trying to make.[/QUOTE]
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Two very old gold coins
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