40-Year Collection of Calculators - $40 (Leon, Iowa)

40-Year Collection of Calculators 1 thumbnail

QR Code Link to This Post

A variety of calculators that have been popular before we got smartphones with calculators built-in. Several different brands, even one with an AC power cord and prints out on thermal paper (or at least it used to). Several with original boxes. A history of calculating, for the extremely low price of $40.

Adding to the collection: Monroe desktop adding machine. My high school math teacher called his new one a calculator, in contrast to the old fashioned adding machines of the day. Fascinating to watch it work, and it might, if you open it up, blow out the dust and give it drops of oil in a few places. I've not seen many of these, because they soon came out with the ten-key adding machines.

I make frequent trips to Des Moines and can meet at some convenient location.

post id: 7914396031

posted: 2026-02-10 21:27

updated: 2026-05-20 19:52

♥ best of ^[?]

reading

writing

saving

searching

refresh the page.

40-Year Collection of Calculators - antiques - by owner -...

A variety of calculators that have been popular before we got smartphones with calculators built-in. Several different brands, even one with an AC power cord and prints out on thermal paper (or at...