Need Help to Identify this trick...

[Mark Williams]

A good friend of mine is trying to remember where he learned the following trick. He is able to recall some of how the trick played out, yet wishes to find out what book this might be in. He cannot remember the entire trick and needs your help.

https://www.youtube.com/watch?v=zMphmH0z5c4



Best Magical Regards,

Mark Williams