If he finds out what it is, could you pass the information on to us? We've been stumped by these pieces several times before. Unless someone new to the forum knows what these things are, I'm afraid we aren't going to be of much help. This old thread
has nice clear pics down the bottom and this old thread
has pics even worse than yours.
What we can tell you, is that it definitely isn't an actual coin. It's a token or perhaps play money of some kind.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis