Collectors Weekly Hall of Fame Saluting Great Collections
Comptometer: Biography of a Machine

Comptometer: Biography of a Machine

Brooke W. Boering's definitive reference on the Comptometer, a turn of the (20th) century 'shoebox' business calculator. In addition to detailed model, manufacturer and operating info, Boering profiles inventor Dorr Eugene Felt and even some of the women who ran these machines.

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