The Burroughs Adding Machine can still be purchased today from sites like eBay, usually for between $70 and $300, or more depending on the condition of the machine. At one point the Burroughs Adding ...

This small stylus-operated non-printing adding machine has seven chains in parallel columns. The links visible in each column are numbered from 1 to 9. A stylus is placed in a link of the chain and ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This ten-key printing electric adding ...