Andrus, Jerry: Andrus Deals Again ©1957 Jerry Andrus, Star Magic Co., Portland, OR Softcover, saddle-stitched, 5.5x8.5", 6 pages

Image courtesy e-Bay seller MagicCollectiblesPlus

Comments: "No. 1 (of a series)...with 45 illustrations by the author."
Available as part of the 2004 compilation Andrus Notes, published by Chazpro Magic.

Contents (page numbers not accurate):

1 Hide-Away-Card: selection ends up between two index cards in the deck
3 Foldaway Card: playing card folded into an index card vanishes, then reappears from the folds without any creases