Kirkham, Kirk: The Locked Book of Secrets ©1959 Magic Exchange, Hollywood, CA Softcover, saddle stitched, 20 pages

Image courtesy eBay seller TJGonFishn

Comments: "A classified list of United States Patents relating to Magic, Illusions, and Allied Subjects." This book just lists the patent numbers, except for Part IV that includes the patent drawings.

Contents (from book ToC, numbers are not page numbers):

1 Part I - Illusions
2 Human Transposition, Appearance And Disappearance
3 Mirror Illusions
4 Mirror Illusions - Pepper's Ghost Type
5 Vivisection
6 Stage And Pit Illusions
7 Transformation By Lighting
8 Puppet Shows
9 Levitation
10 Midget Illusions
11 Shadowgraphs

12 Part II - Small Trick Apparatus
13 Breakaway Fans
14 Coin Tricks
15 Coining Devices
16 Drawer Boxes
17 Printing Devices
18 String Tricks
19 Card Tricks
20 Trick Knives, Swords And Daggers
21 Misc Small Trick Apparatus

22 Part III - Miscellaneous
23 Miscellaneous
24 Trick Chairs
25 Collapsible Tables

26 Part IV - Sample Patent
27 Howard Thurston-Dante "Levitation"