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The German company Grimme, Natalis and Co. of Braunschweig obtained the German patent rights to the Odhner pinwheel calculator in 1892, and produced similar machines under the Brunsviga name[1]. The company improved and developed the Brunsviga which became one of the most successful mechanical calculators and was produced up to the early 1970s.

The company merged with Olympia in 1959 but Brunsviga name continued to be used.  Hand-held electronic calculators under the Brunsviga name are known, maybe badged for whoever owned the Brunsviga name at the time.


Examples of Brunsviga calculators

Brunsviga 10.

This is a compact stepped-drum machine, and is a featured calculator.

Brunsviga b22.

Hand-held calculator from the mid-1970s with green vacuum fluorescent display, badged with the Brunsviga name.

For further photographs of Brunsviga hand-held calculators see the Calculator Photo Library on this site.


  1. Martin, E., "The Calculating Machines (Die Rechenmaschinen)", translation, Volume 16 in the Charles Babbage Institute Reprint Series for the History of Computing, The MIT Press,  p109.

Vintage Calculators

Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2024.