How To Write Codes And Send Secret Messages John Peterson
1966. First Edition. 64 pages. Paperback book with pictorial cover. Clean pages with noticeable tanning throughout. Tightly bound with faint thumb-marking throughout. Previous owner's inscription to first page and reverse of front cover. Notable stain to reverse of rear cover and last page. Paper cover has mild edge wear with mild corner curling. Mild scratching and marking to covers.