Coin or not?!

[Minimax88]

I really don't have any idea what is this...maybe Ottoman coin...or just it's piece of metal. It is soft so I believe it is bad quality silver.

Material: Silver (?!)
Diameter: 9 mm
Weight: 0.8 g

[Figleaf]

It was once nailed to something, which is a Christian world kind of thing. The blob may indicate that it was used as a pin, which is a pretty modern thing to do. I think I see "U..Z" at 7 o'clock on the lower picture in a small and pretty modern font. All in all, my best guess would be a 19th century European piece.

Peter

[Minimax88]

WOW  Great eye  I haven't noticed that earlier...but now I see something. Word MUNZE which is german for coin? And before that word is letter I or F...it is not clear 

[Figleaf]

Ah, that would be SCHEIDE MÜNZE (small change), making it 19th century German states. There's a fair chance that the state in question is Prussia, as it was the driver for German unification. Wearing a Prussian coin as a pin would have been a powerful political statement.

Peter

[Minimax88]

Very possible, I also have found that type of coin, silver groschen from Prussia...too shame that he is in such poor shape