Can anyone point me toward any provenance research concerning Vernon's "Invisible Transfer" move?
The reason I ask, is that there's a trick of Nelson Hahne printed in Hull & Hahne's collaborative booklet "Modernism in Pasteboard" (1930). I think it's called "The Stop Trick". The method Hahne describes to secretly load the bottom card of the deck onto a dealt pile seems very similar to the Invisible Transfer. The only difference is that the card to be transferred is not kanted as in Vernon's handling. Hahne simply sidejogs the card to the right. Otherwise, the moves are identical. Curiously, Hahne doesn't credit the idea. I don't think he claimed it either.
Should Hahne be included with Vernon in the development of the move?