Search Results: united states cryptologic history masked dispatches by weber ralph

National Security Agency, 1993. Paperback. Like New. Softcover. Good binding and cover. Minor shelf wear. Small tears to head of spine. Clean, unmarked pages.

Washington D. C.: Center for Cryptologic Histoyr / National Security Agency. Very Good+. 1993. 1st Edition; 1st Printing. Paperback. B&W Illustrations; This is an oversized paperback book. The book is in Very Good+ condition and was issued without a dust jacket. The book and its contents are in mostly clean, bright condition. There is a bit of light edge wear and bumping / use to the spine ends, corners and edges of the book covers. The text pages are clean and bright. "This is an examination of codes and ciphers as they figured in American history prior to the twentieth century, prior to the era of wireless or radio communication and the advent of the electronic age. If forms a backdrop for understanding modern cryptology and the role of cryptology ...in the growth of this nation." (from Wikipedia) .