Stanley, Harry: Gems with Jumbo Cards ©1959 Harry Stanley Softcover, saddle-stitched, 8.5x11", 14 pages ©1977 Supreme Magic Edition

Image courtesy Amazon.com

Comments: Based on the contents listing, Gems With Jumbo Cards appears to be an abridged version of Magic With Jumbo Cards, listed separately.

Contents (courtesy Dietrich Keller at Magicbooks.be):

2 Tricks with Jumbo Cards
2 Handling the Pack
2 Shuffling the Cards
2 Controlling Top and/ or Bottom Card
3 Controlling a Card with an Injog
3 Cutting the Pack
4 Forcing a Card
5 The Prearranged Pack
7 Tricks with an Unprepared Jumbo Pack
7 Clipped Card (after Jack Vosbergh)
8 Miracle Prediction
9 "Red Herring"
10 20-Card Transposition
11 The Whispering Queen (after Ladson Butler)
12 The Trio (after Elliott)