The Pocket Counter, a small adding machine @jaapsch2

Jaap Scherphuis | The Pocket Counter, a small adding machine @jaapsch2 | Uploaded September 2016 | Updated October 2024, 1 hour ago.
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:
jaapsch.net/mechcalc

$The Quixsum Fractional Adding Machine The Quixsum Fractional Adding Machine is an adding machine for lengths in feet, inches, and fractions of an inch. It was made in 1924. It is very rare as only about 600 were ever made. Stephen Freeborn has a nice video of it too: https://youtu.be/7f4Q-YwIhKw For more information about this and other machines in my collection, please visit my website: https://www.jaapsch.net/mechcalc/ 0:00 Introduction 0:12 History 1:19 Adding 4:04 Clearing 5:02 Opening case 5:02 Opening case 5:33 Mechanism 6:57 Rarity 7:57 Outro$

The mechanism of the Add-em toy adding machine