Original Brunsviga 13RK Calculator in working condition. Germany, 1950's

Amazing Brunsviga 13RK pinwheel calculator in very good condition and perfect working order. This fine antique machine was made in Germany in the 1950s and is quite well preserved. It can be used to perform the four basic arithmetic operations in an easy way and with fully reliable results. The calculator mounts a pinwheel mechanism protected by an ochre-enameled metal casing with a matt hammered finish. The mobile parts are made of chrome-plated metal and the knobs and pointers are made of dark red bakelite. This fine color makes a great contrast with the calculators general finish. All the machines component parts and pieces are original and remain in perfectly operative condition. At the front of the calculator, to the left of the digit levers we can see a riveted triangular metal plate with the brand logo and name, BRUNSVIGA. At the back there is another brass plate with the printed brand and company name, and the city where the factory was located. Last but not least, at the calculators base we find another plate with the model name, Brunsviga 13RK, and the serial number 13-47541. Its reliability and great design turn this antique Brunsviga 13RK into a charming piece, perfect for lovers of classic machines.Brunsviga Calculators History The firm Grimme, Natalis & Co (GNC) was established in 1871 to build sewing machines and domestic appliances at Braunschweig, Germany. In 1892 engineer Franz Trinks was instrumental in securing the manufacturing rights to the Odhner calculator patents. The first machines were built according to W.T. Odhner's 1890 design and were distributed under the brand name "Brunsviga" (Latin for Braunschweig). Trinks continued to develop and refine the Brunsviga calculator over a period of almost 30 years. The "new Brunsviga" range appeared in 1925, and the "13-series" in 1927. Production resumed after the 1939-45 war with a new range of 13-series machines, a motorised version of the stepped-drum machine, and a range of small adding machines. Grimme, Natalis & Co was originally established as a "Commanditgesellschaft auf Aktien". On its fiftieth anniversary in 1921 it became Grimme, Natalis & Co AG. In 1927 the name was changed to "Brunsviga Maschinenwerke Grimme, Natalis & Co AG", and later to just "Brunsviga Maschinenwerke AG" In 1957 Brunsviga entered into an agreement with Olympia Werke AG, which led ultimately to the company being absorbed into Olympia in 1959. Production continued for a time as the Brunsviga Division of Olympia, before coming to an end in the late 1960s. About half a million Brunsviga machines were produced over a period of almost eighty years. The Trinks-Brunsviga calculators work with the pinwheel system developed by W.T. Odhner in the 1870s. It was inspired in turn by the arithmometer designed by Leibniz in the 16th century.