Examines a number of different ways of writing secret messages, including invisible ink and a variety of ciphers. Gives suggestions and aids for code-breaking.
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Anbieter: Black Cat Hill Books, Oregon City, OR, USA
Hardcover. First Edition (1975), so stated. First Edition (1975), so stated. Very Good+ in Very Good- DJ: The Book shows indications of very careful use: just a touch of wear to extremities; the binding is very slightly cocked off square, but remains perfectly secure; the text is clean. Free of any ownership names, dates, addresses, notations, inscriptions, stamps, plates, or labels. A handsome copy, structurally sound and tighly bound, showing only a little very light wear and a minor structural flaw. The DJ shows light wear to extremities, with several mostly-closed tears; very mild rubbing to the panels; the price has not been clipped; mylar-protected. NOT a Remainder, Book-Club, or Ex-Library. Oblong 16mo. (6.3 x 9.3 x 0.65 inches). 88 pages. Illustrated with duotone drawings and tables by the author. Language: English. Weight: 11.5 ounces. Hardback with DJ. Bestandsnummer des Verkäufers 50046
Anzahl: 1 verfügbar
Anbieter: SHIMEDIA, Brooklyn, NY, USA
Zustand: New. Satisfaction Guaranteed or your money back. Bestandsnummer des Verkäufers 0840764650