Gleason, Norma,: Cryptograms and Spygrams
Book Number: 0280056
Dover Publications, New York, 1981. Softcover. Very Good Condition/. First Edition. second-hand copy, slightly rubbed at the corners, vertical crease on the rear panel, internally clean, no annotations.There are over 100 puzzles and problems to solve ranging from the relatively simple Caesar ciphers to far more complex varieties that have even stumped experts included in the book. Size: 8vo - over 7¾" - 9¾" tall. Please refer to accompanying picture (s). Quantity Available: 1. Category: mathematics; cryptography; ISBN: 0486240363. ISBN/EAN: 9780486240367. Inventory No: 0280056. This book is light, and postage will be reduced to $8.00 for shipment within Australia. .