The Contribution of the Cryptographic Bureaus in the World War (A Cryptographic Series, #18)
Aegean Park Press, September 1978. Hardcover. Quarto; {8 & 1/2' x 11'}; Heavy cardstock covered by blue paper with black lettering. End pages tanned/foxing. No markings. No underlining. No notes. 87 pages. Originally published (Stockholm, 1931). This is the first complete English language translation of the original Swedish text. More