It would help if you'd put the images RIGHT SIDE UP, and indicate the diameter in mm and the weight in grams. We don't know if this coin's the size of a dime or a silver dollar. And transcribe ALL the lettering as best you can.
I'm not sure if it's real, but the guy on the front is Louis XIV, so it's french. However, almost all his coins have SIT·NOMEN·DOMINI.BENEDICTVM on the back, and a date. I don't see a date on the reverse, at all.