Which adding machines for your office are best? While adding machines, sometimes referred to as printing calculators, may seem outdated and obsolete, they remain indispensable for offices all over the ...
Other adding machines are found scattered in the NMAH collections. The mathematics collection also has collections of adders, bookkeeping machines, and calculating machines, which are described ...
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 small stylus-operated ...
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