Comptometer News

An 'in-house magazine' for operators of the Comptometer, an early mechanical adding machine, first developed in the 1880s and still in common use in businesses until the 1950s.

4712623Comptometer News
Issues by Year
1926 1.1 (December)
1927 1.2 (February) 1.3 (June) 1.4 (September)