Describes how messages can be disguised by dots and boxes, skyscrapers of color, upper-case letters and lower, phone numbers, musical flags, computer printouts, and card decks
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Anbieter: Wonder Book, Frederick, MD, USA
Zustand: Very Good. Very Good condition. Hardcover edition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp. Artikel-Nr. D03F-01547
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