This is a Scotch & Soda rocking type coin trick, featuring a 10-yen coin and a 100-yen coin. It's a very old product, made by Johnson. A rare item. Can be unlocked with a vanishing ring. Unused, but please note there is some age-related deterioration. *This is a magic trick and cannot be used as currency. Do not attempt to use it as money. We are not responsible for any issues arising from misuse.