Published by The National Cash Register Company, 1961
Seller: Apport Used Books, Emmaus, PA, U.S.A.
First Edition
Soft cover. Condition: Very Good. 1st Edition. 4to, 86 pp. Metal bolt/clip binding through punched holes, brown paper wraps.Very Good, some wear to wraps, and some rust to bolts. A history of mathematics and numbers with frequent references to purchasable cash registers. Uncommon.