Cambridge: MIT Press, (1970). First MIT Press paperback edition. Paperback. Original printed wrappers, 6.5 x 9.75 inches. 123 pp., including 100 numbered type specimen sheets in 16 languages printed in 2 colors (black and red). Spotting to insides of covers, eery good, quite clean and unworn. Item #22786
Originally published by MIT Press in 1954. This first paperback edition (so stated on copyright page) adds additional technical explanation by Carl Zahn.