Britannic calculating machine
Calculating or adding machine 'Britannic' with wooden case made by Guy's Calculating Machines Ltd. The model is a copy of the Brunsviga and was first produced during the first world war. It embodies improvements patented by Frank E. Guy, including a setting-lever clearing device for zeroing the levers by a single movement, interlocking mechanism, and a new barrel construction giving greater rigidity to the setting levers.
|Simple name:||calculator adding machine|
|Classification term:||work and play|