5 ms·
this thing https://en.wikipedia.org/wiki/Mechanical_calculator#/media/File:Calculator_walther_hg.jpg https://en.wikipedia.org/wiki/Mechanical_calculator#/media/
by bushin 8y ago
this thing
https://en.wikipedia.org/wiki/Mechanical_calculator#/media/File:Calculator_walther_hg.jpg https://en.wikipedia.org/wiki/Mechanical_calculator#/media/F...