please help me identify this coin

I have this coin one and half year, and still dont known, what this is.

11.00 - 11.01 - 11.02 - 11.03 g

2.6 cm

Salve,guardi se fosse questo 4 Kreuzer di Francesco Giuseppe d'Austria

N#13819

No it's just a metal disc (burned) with a stamped in 4, if it ever was a coin in no longer is one (since a long time ago).