Sumlock Comptometer LC/912/S/3251

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The LC at the beginning of the model number stands for London Computator Corporation. The 9 denotes that it is a full keyboard (up to number 9), and the 12 denotes the 12 columns of keys. The S stands for Sterling currency.

The London Computator Corporation, Limited, was formed in 1940 by Bell Punch to deal with the sales side of the Plus and Sumlock machines. London Computator Corporation Ltd. was renamed Sumlock Limited in 1950.  In 1960 they bought the British parts of the Comptometer Corporation (what remained of Felt & Tarrant) and became Sumlock Comptometer Ltd in 1961. This also allowed them to officially call their calculators comptometers.

This appears to be an early model due to the style of the keys and the casing.

Manufacturer: Sumlock
Date: Unknown

Other Systems Related To Sumlock Comptometer LC/912/S/3251:

Item Manufacturer Date
Sumlock Duolectric Comptometer Sumlock 1953
Sumlock Sumlomatic Comptometer 912/S/6a/604.052.A Sumlock 1959
Sumlock Anita Comptometer Mark 9 Sumlock 1964
Sumlock Comptometer 993S Model 912/VZ/S/933.896. Sumlock 1st January 1964
Sumlock Anita 1011B L.S.I. Electronic Calculator Sumlock 1971
Anita 811 Hand Held Calculator Sumlock Comptometer Ltd 1972
Sumlock Anita 861 Electronic Calculator Sumlock 1974
Sumlock Compucorp 344 Statistician Sumlock 1979

This exhibit has a reference ID of CH35981. Please quote this reference ID in any communication with the Centre for Computing History.

 

Sumlock Comptometer LC/912/S/3251


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