History of the Use of Codes (A Cryptographic Series, #12)
Aegean Park Press, June 1977. Hardcover. Quarto; {8 & 1/2' x 11'}; pine green cardstock with darkened spine and margins on spine side front & back with black lettering on spine and front panel. Foxing/dust stains top textblock edge. Clean interiors, without markings, no underlining, etc. 80 pages. More