I obtained these coins(or what I think are coins) from a grab bag at a convention recently and really don't know anything about them. I can read a little Japanese but the writing and markings make me think they may be Chinese. And I'm actually unsure if one(orany) is even a coin(the one with the small hole on top). Anyway if anyone could help I would be very thankful. coin 1 coin 2 coin 3