Antique Hamann Manus Calculator. Germany, 1927

Stunning antique Hamann Manus calculator, B model, quite well preserved and in fine working order. This sturdy and fascinating machine stands out for its good condition and striking beauty. It was made in Germany in 1927 and can perform the four basic arithmetic operations with exact outcomes. It mounts a black-enameled metal-sheet casing and a cast-iron base, supported and leveled by four small round legs. The black finish that covers and embellishes the casing is in acceptable conservation state: except for some slight signs of wear it remains even and shiny. The chromed-metal component parts and the black, red and white plastic pieces are original and remain in good condition too. The numbers located beside the levers are painted in white and red enamel. Next to them we can see the brand logo and name in big white letters. If we turn the calculator upside down we will find the serial number 1123 engraved in the metal, together with the capital letter B (corresponding to the machine version). All the lovers of old-time machines will appreciate this antique Hamann Manus B calculator, in perfect working order and with an astonishing classic beauty.Hamann Manus Calculators History The Hamann Manus calculator was designed by Christel Hamann, a famous German engineer born in 1870. Hamann was responsible for the development of some of the most popular calculator of the early 20th century: the Hamann itself, the Gauss and the Mercedes Euklid. After World War I the engineer joined the Berliner De Te We (Deutschen Telephonwerke- und Kabelindustrie AG) where he developed a new calculating system that allowed an automatic division. The first machine ever with this kind of mechanism was precisely the Hamann Manus, launched in 1925.