This is the U.S. Patent Office model for a lever-set non-printing adding machine. It has a wooden case with a curved metal front and back, and somewhat resembles an early cash register. It contains ...
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 white plastic stylus-operated ...
Tara Struyk is the VP of content at Janalta Interactive, with 10+ years of experience as an editor and content manager for online publications. Amy Soricelli has over 40 years working with job ...
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