This sleight was first published in Lorayne's Close-up Card Magic, 1962, p. 269. Lorayne called it the JB Kard Kop. But in Advanced Fingertip Control, 1970, p. 142, Ed Marlo recounts that he was told by Persi Diaconis that Persi showed this steal-palm to John Benzais, and Benzais then showed it to Lorayne.