This is vintage new old stock from an old magic shop buy-out.
A Lincoln Memorial type penny held in a spectator’s hand changes into a real dime when covered for a just a second with this magical block!
You can pass the block out for examination before and after the trick!
The penny is nowhere to be found! The dime is real and can be examined as well.
This is a vintage Adams’ Magic item that’s mint on its original card dated 1939.