Allard's Computer Museum Groningen
The Bell Punch Company
Into the picture
The Bell Punch Comptometer, Sumlock type 912/d
A very early Plus 509D i think from around 1940s, donated 01-04-2004 by Eric de Lepper, Maastricht. This particular machine is used by the NS railway for counting the amount at the end of the day.
A Sumlock comptometer Duolectric 12D from 1953, Donated By Niek Bostboom
A Plus 506 D from 1959
Click to see it's back
A Plus 506 D from around 1940/50
A Sumlock Comptometer type 912/d from the end of the 50s, donated By Leny
A Sumlock Comptometer type 909/c/4a/130.592 from around the 50s, achieved 16-01-2005
| Nigel's Vintage calculator page |
