Rare L.payen 9 Scripters Arithmometer

ARITHMOMETER. Blond oak, brass and steel. L. Payen, Paris 9th, 16 rue de la Tour des Dames, circa 1907. Exceptional condition, very good state of conservation. Cabinet in blond oak in perfect condition. Dimensions: 63 cm × 14 cm × 21 cm (on tilt system). Calculating machine with 9 writers, totalizer of 16 digits and rev counter of 9 digits, from the workshops of Louis Payen, successor of Thomas de Colmar. Manufacturer's stamp engraved at his address, 16, rue de la Tour des Dames, Paris 9th and with the serial number 5542. The arithmometer rests on a rectangular frame connected to the box by two hinges at the front and by two slides in an arc on the short sides, allowing the machine to tilt towards you: two locking screws on the sides maintain the position. With the original key. Beautiful copy in perfect working order. The arithmometer was the world's first commercialized calculating machine, and for nearly forty years it will be the only type of calculating machine available for sale. This calculator made it possible to add and subtract two numbers in a direct way and it facilitated the operations of multiplication and division thanks to a mobile result plate. It is to the Frenchman Thomas de Colmar that we owe the invention of this machine in 1820. It was successfully marketed from 1851 to 1915 and, from 1854, the Academy of Sciences recognized its scientific interest. Between 1887, when Payen took over the business, and 1915, the arithmometer evolved rapidly with ultimately more reliable mechanics. In Marguin (Jean), History of Instruments and Calculating Machines. Hermann, 1994 We have tested this calculating machine, it works perfectly, for more information do not hesitate to contact us on 06 08 92 54 55 We are constantly buying this type of old equipment. Pictures.....