Uploaded November 2024 | Updated September 2026, 2 hours ago

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The Adall Calculator was a simple adding machine made in England from 1907 to about 1912.

For more information about this and other machines in my collection, please visit my website:
jaapsch.net/mechcalc

Stephen Freeborn already made a video about this:
youtu.be/YsR8QUO2_0s

Rechnen-Ohne-Strom has much more in-depth information:
rechnen-ohne-strom.de/rechner-galerie/addiermaschinen/scheibenaddierer-ugrich-hauff-adal-rsb

0:00 Introduction
1:09 Addition
3:00 History
4:45 Reset
5:03 Manual
6:00 Currency table
6:59 Storing in box
7:32 Outro