The Astra "Baby" Adding Machine
Автор: Jaap Scherphuis
Загружено: 2024-09-22
Просмотров: 1161
The Astra Adding Machine, Klasse 0 Serie 01, is nicknamed the Astra "Baby". Compared to the earlier Astra machines this is a small and light adding machine. It has a display window for the register and for the input, and has double-zero and triple-zero buttons. This one has no subtraction, though there was a version with subtraction and negative totals.
The picture of the 1912 Dalton Adding, Listing and Calculating machine is taken from: https://texashistory.unt.edu/ark:/675...
University of North Texas Libraries, photo credit to the Fort Bend Museum.
For more information about this and other machines in my collection, please
visit my website:
https://www.jaapsch.net/mechcalc/
0:00 Introduction, History
1:32 Addition
2:12 Totals
2:42 Non-add
3:00 Repeat, Multiplication
4:09 Mechanism
5:25 Outro
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