I discovered this coin in a batch of quarters I received. I'm not sure if it's real currency; I think it might be some kind of arcade token? Unsure. It is the size of an American quarter, but a little lighter. On the top and bottom of the coin it says New Japan, and on the right and left there are 3 stars. In the middle, there is the Star of David, and then in that is NJ. Same on both sides. If anyone has any information, I'd be glad to know!