Secret Warfare: The Battle of Codes and Ciphers.
Newton Abbot: David & Charles, 1973. 8vo. 187 pp. Spine bumped, light foxing to edges and endpapers. Slight warp to boards. Dj spine faded, light rubbing & edgewear. History of cryptography from Ancient Greece to modern Cold War codes. Very Good in Very Good dj Cloth 0715362232 (Item ID: 7932)