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Monroe #1 High Speed Adding Calculator | Calculators22 of 25 |  |  |
Posted 2 years ago
nespedal
(1 item)
I have an electric Monroe #1 High Speed Adding Calculator that still works when plugged in. The sticker on the bottom says Calculating Machine Company New York, USA, #1, 100-135 volts -0-60 cycle, 100-135 volts D. C.
Thank You For Your Help,
Nick
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CalculatorsThe first calculators were abacuses, followed by the slide rule (invented b…
I have a similar Monroe calculator. Interestingly it is not exactly the same, but the label is identical. My dad used it for years following WWII. I put a photo here: http://renegadechickens.com/Monroe_Calculator_small.jpg
I found some info on a website here: http://home.vicnet.net.au/~wolff/calculators/Monroe/Monroe.htm#Overview
I would love to learn how to operate it!