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: Wonder Book, Frederick, MD, USA
Zustand: Fair. Acceptable condition. No Dust Jacket Former Library book. A readable, intact copy that may have noticeable tears and wear to the spine. All pages of text are present, but they may include extensive notes and highlighting or be heavily stained. Includes reading copy only books. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included. Bestandsnummer des Verkäufers M09OS-00397
Anzahl: 1 verfügbar
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