Paperstone – Office life, work and fun

Before Calculators There Were…

By on February 24, 2011 in Office Machines & Supplies

old adding machine - comptometer

Before digital calculators, there were more cumbersome yet charming adding machines such as the COMPTOMETER(!), a mechanical clunkster of a calculating beast. The pictured ad is from 1942.


Source: Boing Boing


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