Anyone know who created the gimmicked version of the 6 card repeat?

There's various gimmicked approaches I thought?


Don't know if this helps at all, but

"AUTOMATIC, SELF CONTAINED SIX CARD REPEAT TRICK

"... Now you can do the Six Card Repeat Tricks without any skill or practice. Made up like the Repeat Bills these cards are easier and more effective than the old sleight of hand method. A trick you'll use constantly. Only ......... $1"

ad by Wyndham Kemp of El Paso in the December 1944 "Linking Ring".

Looking for the p***et version

From Denis Behr's Conjuring Credits site:

"Sam Berland came up with the idea of using rubber cement on the edges of the cards to hold packets of three together, publishing it in The Tarbell Course in Magic, Vol. 6, 1954, p. 75."