Osborne, Tom: Fun at Dinner Napkin Folds ©1943 Thomas James Osborne, Philadelphia, PA Softcover, saddle-stitched, 6x9", 38 pages

Image courtesy eBay seller SandyBill1930

Comments: The second edition was later published as Napkin Folding as part of the Classics of Magic series.

Contents (from book ToC):

6 The Brassiere
8 The Cradle
10 The Mouse
12 The Standing Napkin
14 The Dancer
16 Old Fashioned Girl
18 The Hindu
20 The Rabbit
22 Basket Rosette
24 Finger Marionette
26 The Tulip
28 The Rose Bud
30 Candle Stick Holder
32 The Bouquet
34 The Dancing Doll, Susie Q
36 Grandma
38 The Old Boy Himself