Figure 4 from Stephen Johnston, ‘Making the arithmometer count’, Bulletin of the Scientific Instrument Society, 52 (1997), 12-21. For the full text, see the main page; for the other online images, see the gallery.
Larger version of figure 4.

Figure 4

The oldest surviving arithmometer (note 7).

By permission of the Smithsonian Institution; photo no. P651074B.

Return to article.