Pemper, Frank: Ricardo's Diminishing Card Case ©1970's (circa) Frank Pemper, WN Softcover, folded manuscript, 5.5x8.5", 2 pages

Image courtesy eBay seller benmichelvintage

Comments: Illustrated with diagrams. Originally came with necessary gimmicks. A Poker sized deck of cerds is removed from the case, which instantly transforms to 1/2 it's size

Contents:

1 Effect: described
1 Method and Routine