Figure 9 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.

Figure 9

The 1855 exhibition arithmometer (note 31). From http://www-03.ibm.com/ibm/history/exhibits/attic3/attic3_101.html by permission of IBM Archives.

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