Wooden comptometer. Metal device with two long rods going down between keys on the top of the machine (we have one other comptometer with this same metal device - which is quite rare - we have two and one other is known)
Date
ca. 1890
Manufacturer
Felt and Tarrant Mfg Co.
Place Manufactured
U.S.
Identifying Numbers
Model number
wooden "shoe box" Comptometer
Serial number
505
505 (on silver metal part of case under tear drop decimal point indicators
Dimensions
5 1/4 x 9 x 14 1/2 in.
Copyright Holder
Felt and Tarrant Mfg Co.
Category
Calculator/mechanical
Subject
Mechanical calculation; Felt, Dorr E.; Tarrant, Robert
