The Sumlock 912/D/14.585

Allard's Computer Museum Groningen

The Bell Punch Sumlock Comptometer type 912/d

Sumlock

At the 21st of november 2003 i got a this beauty from Leny. Leny's father in law
J. Ruurs, who passed away this year, did use this machine on his work by KPM in Amsterdam.

Together with the Sumlock came this great comptometer manual:

This Comptometer manual is the original manual of the
Comptometer of Felt and Tarrant

Thanks Leny for this great gifts!

The specs:

It appears to be a "Comptometer" type of a fairly modern style (late 1950s -> 1960s) Produced by: Bell Punch Company Limited London England
see: Nigel's Vintage calculator page

The number of the case

The serial

The machiene is sold in The Netherlands by Procento, Kantoormachine Import

Allard's Computer Linklist

Nigel's Vintage calculator page