Alan's Mechanical Calculator Page
My collection of old adding machines
I have a collection of mechanical calculators that I have rescued and returned to full working order. My interest in
these machines began when I happened to see a YouTube video featuring a Friden machine. After telling someone about
my newfound interest I was later gifted an adding machine for my birthday, later someone else gifted me a couple more
and this resulted in my acquiring more and more of them until I now have 17 of them.
These machines seem to attract little interest or value, most of them have been given to me or I have bought for under
£20, I like to think I am rescuing them from being lost forever and some day interest in these machines may increase.
See the Schickard Calculator I made
HERE
and a video of my latest acquisition in operation (a Diehl model E15)
HERE
You can see more about these machines here:
Jaapsch or
JohnWolff or
Vintage-Calculators or
Prof. Christian-M. Hamann or
Wim Hasselo
lots of great YouTube content
GrumpyTim or
ChrisStaecker.
See a comptometer in use back in 1931
Curious Mark's video about his Friden