Trost, Nick: Mental Fingertips ©1964 Nick Trost, H.P. Wisehart, OH Softcover, folded manuscript, 8.5x11", 4 pages

Image courtesy eBay seller 1591msm

Comments: Illustrated. From the cover, "In this double-barreled effect, the performer hands the deck to a spectator and turns his back. A spectator removes a small number of cards and slips them into his pocket. A second spectator then selects a card at random, which he pockets. The deck is shuffled and dropped into the performer's pocket. Explaining that he has "mental fingertips," the performer removes two cards from his pocket. When the values of the two cards are added, their total corresponds to the number of cards hidden in the first spectator's pocket. For the second climax, the performer produces from his pocket the exact mate to the second spectator's card."

Contents: (numbers are not page numbers):

1 Introduction
2 Mental Fingertips
3 Preparation
4 Method