Figure 1 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 1

The arithmometer as shown in an 1865 instruction manual (note 47).

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Text copyright © 2005-19 by Stephen Johnston, unless otherwise credited.
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