Barker wayne g (6 Ergebnisse)

Hardcover. Zustand: Good. Zustand des Schutzumschlags: Includes dust jacket. First Edition. First edition, Some markings and underlining throughout.

Trade paperback. [3], 186 p. Footnotes. Index. This is number 22 in their Cryptographic Series. This material was prepared and written about 1946 by the Historical Section fo the then Army Security Agency. The U. S. Government provided the editon, through the National Archives, an unclassified or "sanatized" version of the cited "Historical Background". On occasion, "blank pages: and frequently censored 'gaps' occured in the text. In these cases, the editor made reference to other unclassified sources, and especilly to Yardley's The American Black Chamber, to fill in the gaps. Very good. No dust jacket as issued. Presumed first edition/first printing thus.…

Trade paperback. PResumed first edition/first printing. xi, [1] 223 p. Illustrations. This is number 17 of their Cryptographic Series. Progressively takes the student through the entire subject of the cryptanalysis of the Hagelin Cryptograph, also known as M-209 in the U.S. Army during World War II. The text begins with the analysis of a one-wheel machine, then a two-wheel machine, until finally the analysis of the actual six-wheel machine is reached. Problems to be solved are included. The Hagelin Cryptograph was invented in the 1930's by Boris Hagelin. It was favorably recieved by various government. It was estimated that on the order of a half million of these devices were manufactured. Very good. No dust jacket as issued. …

Hardcover. Zustand: Near Fine. First Edition. 223pp. A Cryptographic Series. Orange hardcover with black titles, cover has minimal edgewear. Size: 4to - over 9¾" - 12" tall. BC.

Paperback. Zustand: Very Good. 11 x 8.5", wraps, 146pp, covers a little rubbed, spine and corners (and one patch of front cover) taped else nice copy. Cryptographic Series #59.

Soft cover. Zustand: Very Good. Parts I and II. Softcover, bound in gray paper with black lettering. Covers clean and bright; Part II slightly toned towards spine. No dates on title pages. Part I copyright page dated 1979; Part II copyright page dated 1989. Part I 186 pages. Part II 99 pages. Black and white photographs in the text of Part II. Both clean throughout. Overall very good condition. Please email with questions or to request photos. Note: if there is a photo beside this listing, it's a STOCK photo that ABE put there (for reasons that we cannot understand or control) and might not match this actual book.…