Hello
I have recently purchased a small lot of poor condition Hungarian Denárs. It included this coin, which seems to show the date ‘15666’. Weight is 0.41g. The Numista page (N#22141) shows that weight should be 0.58g, but we can see from the pictures that a lot of the coin is missing from clipping or damage, so my instinct is that this matches what we could expect. The lettering does not seem to be right, for example, the P in PATRONA on the reverse (first picture) looks like a B. It is hard to tell from the picture, but there is a lot of coppery colour coming through, particulary on the reverse, almost as if the coin was silvered/silver washed or made of billon, as opposed to actually being made of .5 silver.


I would be surprised if this a modern counterfeit, given the condition and lack of value in this coin (1566 is the most commonly registered year on Numista), but what is the alternative explanation? Is this an error? A contemporary counterfeit? Any help is appreciated. Thanks in advance.