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 manual adding ...

This ten-key printing manual adding machine has an black iron and glass frame with a steel keyboard painted green. Two rows of white plastic number keys are marked with digits and their complements ...

Dear Collector: The enclosed photo is of an adding machine my grandparents had in their grocery store when I was a small child. I am curious to know if it has any value? Capable of addition and ...