Model Brunsviga 20 calculating machine, serial no. 146309, supplied by Block and Anderson Limited, Darlington, County Durham, England and made by Grimme, Natalis and Co. A. G., Braunschweig, Germany, 1931-1939
Science involves calculation as well as experiment and theorising. Gradually improving equipment for calculation was a feature of twentieth-century science, from calculators at the beginning to computers at the end. A mechanical calculator like this one was still being used in the 1950s to study and analyse the growing cases of lung cancer in Britain.
Brunsviga was the brand name of a popular series of calculating machines produced by the German manufacturer Grimme, Natalis and Company from the 1890s onwards.
- Object Number:
- brass (copper, zinc alloy), complete, plastic (unidentified), rubber (unidentified), steel (metal), tin plated
- furnishing and equipment
- tools & equipment
- Imperial College of Science and Industry (Lyon Playfair Library)
Cite this page
We encourage the use and reuse of our collection data.
Data in the title, made, maker and details fields are released under Creative Commons Zero
Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence
Download catalogue entry as json
Download manifest IIIF
Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.