In The Patented Shuffle, 1964, p. 10 of the section “I Shuffled the Cards”, Marlo published the idea of tapping the deck on one corner to cause a “Marlo Short Card” to jog from the edge. This was not a traditional corner-shorted card, but one with a one-sided stripper cut. Vernon published the idea again (with a traditional corner-shorted card) without attribution in Ganson's Dai Vernon's Ultimate Secrets of Card Magic, 1967, p. 150. It was explained in more detail in The Vernon Chronicles, Vol. 1, 1987, p. 2, in which Vernon said he had learned the idea from a gambler in San Francisco.