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 manual adding machine has seven ...
Arthur E. Shattuck invented the Centigraph Adding Machine in 1880 and filed for a patent that same year. Humans are innovators. We’re always looking for a smarter, faster, more efficient way to do ...
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 ...
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