What coin is this?

Hello I found this coin in my old house. What coin is this?

 Thanks 

?

From the shape and design it looks like some religious nick-nack. Try a search with what s written on it and maybe it has a page in the exonumia catalog.

I search but nothing: I read in the medal: S Petrvs Galatve something like this

 Not a coin - it is a medallion - and it used to 

gave a hanging loop at the top but most of that removed. 

S PETRVS AR GALATVS // .I.C D..AE or similar.