This lot is closed for bidding. Bidding ended on 11/16/2019
Stone, Solomon. Solomon Stone’s Marvelous Mental Calculator. New York: Popular Pub. Co., ca. 1880s. Hand-colored pictorial wraps. 12mo. [15]pp. Chipping to wrapper, edges thumbed. Scarce pitchbook explains how to make rapid mathematical calculations, the squares and cube roots of numbers, and quick addition and multiplication even of large sums. Uncommon.