This palm was published by Ed Marlo in The Cardician, 1953, p. 55. Stanley Collins also wrote up the palm in his “Zeta Four Ace Trick” from Gems of Personal Prestidigitation [1952], p. 24. This book was never actually published, and didn't see the light of day until inclusion in Edwin Dawes's Stanley Collins: Conjurer, Collector, and Iconoclast, 2002.

In Marlo's description, he claimed he had been protecting the idea for years, and that it had been moving through the underground for a time. It's impossible to say if it got as far as Collin's who lived in St. Leonards-on-Sea previous to 1952, or if Collins devised it independently.