hello, after talking with coin enthusiasts on the French version of this site, they advised me to try it here, because they, like me, cannot determine whether this coin is real or not.
2. If it is paktong (which I'm assuming is same/similar to “nickel silver”) then it should fail the magnet slide test even if it's silver plated. The density should be significantly different, too.
Thank you for your answer, with other users, we have noted defects on the part without knowing if they resulted from the use of the coin or from a counterfeit:
1) placement of details
2) bead spacing that looks different
3) flaws likely due to wear of the piece such as fading of detail or character
Before you start looking at the fine details I think you have to verify that it's actually silver. I realize that for the price these sell for using real silver does not impact the profit of selling counterfeits too much, but still, first things first.
For silver testing, I like the “icecube”** test, but a XRF portable analyser should give more reliable results :)
Exemple given by NGC might help
** You take a french common 10 francs Hercule, about the same shape, and you push it in an ice cube. The coin enter it as if it's butter, thermal conductivity of silver. Then you make the same test with your coin …
I already suggested two tests you could do. Paktong or nickel silver is non-magnetic. A magnet won't help. You can also do ice cube test, ping test, take it to a coin dealer or jewelry dealer for XRF or similar testing…
Tópico movido para "Numismatic questions"(ZacUK, 2 Jul 2022, 19:16)
hello, I did the ice cube test, it seems to melt as quickly on a 50 Hercules franc as on the Chinese coin (small delay due to the difference in size of the ice cubes) here is the accelerated video of the experiment : https://youtu.be/ai3K3BOseiI
Nice video. So if you're really sure it's silver might be time to submit it to the experts. You're not likely to get conclusive proof one way or the other from pictures on the forum.
BTW..your “control” is a good idea but a 2 euro coin weighing 8.5 g is not really a control for testing a 26.9 g coin. It needs to be the same mass to really be a control (too little thermal mass).
For this test, I was taking the coin in my fingers and pushing it in an ice cube, then comparing the speed the coin enter the ice cube, temperature of fingers is usually higher than ambiant temperature, may you try it ?
Hello, sorry to have used a 2€ coin, i didn't have other similar coins not in silver. nevertheless i don't think to submit it to experts right away considering the rates asked by pcgs especially if i have to send my coin so far by post.
Hello, sorry to have used a 2€ coin, i didn't have other similar coins not in silver. nevertheless i don't think to submit it to experts right away considering the rates asked by pcgs especially if i have to send my coin so far by post.
Now I don't mean to push more tests on you, but if you want to there is a test you can do with a small magnet.
First, find a coin that is not silver nor magnetic that is about the same size as your Chinese coin. Second, find a small but solid magnet (preferably a small cube or small ball). Third, tilt your non mag & non silver coin at a small angle resting the end pointing down on a surface, then drop your magnet from the end pointing up so it slides down to the other end. (What should happen is that magnet just slides down the coin without any effort) Forth, do the same process but for the Chinese coin. ( What should happen is that the magnet goes at a much slower pace because of silver's slight magnetic properties)
You don't have to do this just giving more ways you could test the coin.
edit: I'm so sorry lol didn't see that you had done this already up above.🤦
Many fakes are made from 2 halves struck separately, then pressed together (possibly with some filler material in between to make the weight match) to create the appearance of a normal coin. The sides of the edge are then ground off to hide the seam.
On a real coin, I would expect the reeding to extend all the way from one side of the edge to the other consistently all the way around. Here is an example of a different Chinese coin which demonstrates well what I'm talking about: https://www.ebay.com/itm/194926410628
