This treatise is a compilation of Marlo's methods for performing a card-to-wallet, incorporating his Exclusive Card in Wallet (1961) with methods published in Ibidem, Hierophant, Card Finesse, Marlo's Magazine, and other previously unpublished but related methods. This material was discovered in a thick folder among Marlo's private effects.
The idea of causing a selection to disappear from the deck and then reappear elsewhere is almost as old as playing cards. Reinhard Müller has painstakingly researched the basic effect classified as "Card Found in Some Object," which was being performed (in some form) in the 17th century. For example, Müller discovered the effect, "Card in Mirror," in a book written in 1690 by Eberhard Welper. There are 58 pages of references ferreted out by Jack Potter and listed in The Master Index to Magic in Print.