Jobbygee
Hi, thanks… it's almost exactly like these coins, except that it's made from copper…. Could it be some kind of jeton copy? It's also very thin…
3 kreuzers are likely to have silver content below 50%. Billons would look more like copper than silver.
Imperial standard groschen (1/24 thaler) was at .500. Drier (1/96 thaler) was at .312. 3 kreuzers is something in between.