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This trick of William Wimbrough, which Dai Vernon recalls having vanished from John Northern Hilliard's MS. of Greater Magic (Stephen Minch wrote this story up for “Magicana” in Genii, Vol. 55 No. 10, Aug. 1992, p. 673), would seem to have been recorded first in Glenn Gravatt's Encyclopedia of Self Working Card Tricks, 1936, p. 49, under the title “Upside Down.” It appears there without credit, but in the Jean Hugard revision, p. 167, the name Wimborough has been supplied. On p. 342 of the same work appears a trick with the by-line S. H. Wimbrough, possibly the same man. In Expert Card Technique, 1940, p. 344, Hugard and Fred Braue recorded a method of Luis Zingone's, “Reverse Supreme,” with the comment, “a vast improvement” of an effect previously done with double-backed cards, likely speaking of Wimbrough's trick.