Vernon, Dai; Dr. Jacob Daley & George Starke (editor): The Travelers ©1950 Stars of Magic, Inc., NY Softcover, folded manuscript, 8.5x11", 4 pages

Image courtesy eBay seller sca2999

Comments: B&W Photographs by George Karger. Edited by Dr. Jacob Daley & George Starke. Stars of Magic Series 6, No. 3. Later incorporated into the compilation book Stars of Magic, edited by George Starke.
Effect: Four selected marked cards are placed in different parts of the deck. The deck is shuffled. The four cards vanish from the deck and mysteriously appear in four different pockets of the performer.

Contents (from entry in Stars of Magic):

1 Effect
2 Preparation: set up
2 Instructions: with patter
4 Conclusion: with tips