The Pocket Counter, a small adding machine
Channel: Jaap Scherphuis
Date: 2016-09-13

The Pocket Counter is a small plastic adding machine made in Japan in the 1960s and 1970s. This one has a primitive clearing mechanism that many other variants do not have.

See my collection of mechanical calculators on my website:
http://www.jaapsch.net/mechcalc/