Marlo, Ed: The Magic Seven ©1954 Edward Marlo, Magic, Inc. Softcover, saddle-stitched, 25 pages ©1973 Second Printing

Image courtesy eBay seller Cardiste77

Comments: "A Masterly Routine of Repetition". A spectator's card keeps appearing in the magical seventh position in the deck.

Contents:

2 Magical Seven
8 The Glide
21 Opening Phase
22 Climax Phase