Publisher Information: 1909-1910.
[Thomas de Colmar Arithmometer.] Payen, L. (Veuve [Widow]). (1) Arithmomètre Payen modèle 1908 . . . Machine à calculer . . . pp. Text illustrations N.p., n.d. [ca. 1910]. 287 x 231 mm. Unbound advertising circular. Creased horizontally, a few marginal tears. (2) Arithomètre L. Payen . . . Machine à calculer . . . xxviii, 15pp. Text illustration. Paris, n.d. [ca. 1910]. 238 x 158 mm. Original printed wrappers, sunned, spine repaired with paper tape. Last leaf repaired with clear tape and with small lacuna affecting a bit of the text. Together 2 items. Very good.
Rare promotional materials issued circa 1910 for the latest version of the Thomas de Colmar Arithmometer, the first commercially successful calculating machine, produced and marketed between 1851 and 1915. The Arithmometer was invented by Charles Xavier Thomas de Colmar (1785-1870), who managed its manufacture from 1851 until his death. The company continued under family management until 1887 when Louis Payen, an engineer with the firm, purchased it from Thomas’s grandson; after Payen’s death in 1902 his widow managed the business until 1915, when she sold it to the company’s final owner, Alphonse Darras.
The second pamphlet listed above contains instructions for operating the Arithmometer and includes several numerical tables in the back for calculating square and cube roots, simple and compound interest, etc.Book Id: 46124