Uploaded May 2016 | Updated September 2026, 1 hour ago
The Aderes column-adding machine is a simple calculator for adding single digits. It is based on the Adix from 1903, but was itself probably made in the late 1940s or the 1950s.
Sorry about the slight blurriness - there was a smudge on the lens I hadn't noticed till afterwards.
The Aderes column-adding machine is a simple calculator for adding single digits. It is based on the Adix from 1903, but was itself probably made in the late 1940s or the 1950s.
Sorry about the slight blurriness - there was a smudge on the lens I hadn't noticed till afterwards.
