Personal Comment: Good trick, a gem rarely seen nowadays. Imagine this in a Cannibal Card Routine. Instead of a coin, you can have a piece of a card being regurgitated. I always liked this, so I had to include this. There is nobody credited, but J.B. Bobo says it was published in "The Sphinx some years back" the book is old, so it is even more years. If somebody knows the source I'll change it accordingly.