Adwel W504 Full-keyboard Adding Machine

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Adwel Model W504, S/N 799113 

The "Adwel" Model W504 is a full-keyboard printing calculator or "add-list" machine. Although this particular model is one of the most basic office calculators, it still manages to contain well over one thousand manufactured parts, and its mechanism is far from straightforward. This example in our collection is a pre-decimal version.

Manufactured by Jorgen S. Lien. 1960 Bergen, Norway. 
Functions: Add, subtract, sub-total, total; manual operation 
Digits: 7 keyboard, 8 printer 
Dimensions: 8-1/2"W x 14-1/2"D x 6-1/2"H 
Weight: 15 pounds approx 
Manufactured: Bergen, Norway, 1960s.
Materials: steel brass, plastic, rubber, aluminium
Dimensions: OA 395 mm x 268 mm x 201 mm
Marks: ADWEL (brand name in the form of a small casting on the front of the machine) MADE BY JORGEN S. LIEN BERGEN NORWAY (decal on side of machine).

Manufacturer: Jorgen S Lien Bergen
Date: 1960

This exhibit has a reference ID of CH22015. Please quote this reference ID in any communication with the Centre for Computing History.


Adwel W504 Full-keyboard Adding Machine

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