Grant, U.F. & H. Adrian Smith: Flap Slate Wrinkles ©1931 Grant & Smith Softcover, stapled manuscript, 29 pages

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Contents (from book):

1 Preface
3 The Window Envelope: getting rid of the flap
4 The Television Slate: message partly written on slate 1 appears on slate 2, then finishes
6 Another Living And Dead Mystery: dead person's name is rewritten by the spirits
9 Another Method: using a "Miracle Slate"
10 The Birth Of Old Glory: colors marked on a slate reform to the USA Flag
11 A Polychromatic Phantasy: a picture forms piece by piece on slate in an envelope
14 A Master Move With Slates: for two slates and a flap
15 Two Messages With One Flap: uses the master move
16 Triple Message With One Flap
17 A New Miracle Slate Mystery: performer predict sum of four numbers using ungimmicked slate
20 Challenge Slate, Disk And Ribbon Mystery: cardboard disks threaded on a ribbon between two slates fall, freed from the ribbon
21 A New Card And Slate Mystery: name of selected card appears on a slate
23 The Three Card Monte: using three Slates instead of cards
26 The Cut And Restored Ribbon Mystery: ribbon threaded through slates with holes is cut and restored
27 Ten Minutes With The Spirit Slate: uses one slate, two flaps and window envelope
28 - Chinese Magician Answer
28 - Pig Looks Around
29 - Solider, Dog, Door Picture
29 - Scotland Picture
29 - Cow Grazing in the Grass
29 - Clock: time selected by spectator appears on a clock