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 adding machine section has a ...
This model of a section of a full-keyboard non-printing adding machine has two complete columns of keys and two partial columns. The partial columns are in the middle, and the total number of keys is ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results