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Monroe high speed adding calculator

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Calculators21 of 34MECHANICAL PRODUCTION COUNTER1986/89-psion organiser cm and lz.
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Posted 3 years ago

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rickgron
(1 item)

I found this in the trash. I knew it was vintage. I spent over 2 hours looking online and I have not been able to find this particular model. some have been close but i haven't found this one. Does anyone know?the difference that I have seen is the side knob compared to a lever. on the top there are squares that go all the way across and on all the other similar ones they only go half way across. and the little red switch above the minus button on the right side. oh and the levers on the top right. can someone please help me?

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  1. fhrjr2 fhrjr2, 3 years ago
    You may already have this information but I will submit it anyway. It might help in your research. The information below came from: http://www.earlyofficemusuem.com

    Monroe Calculating Machine
    Company Founded 1912 ~ On market 1916 ~ Advertised 1917-30
    Monroe Calculating Machine Co., Orange, NJ, New York, NY
    Full keyboard, crank-operated. Electric introduced 1922.
    1916 Price $250
    1924 Prices: Crank-Operated $200-$400;
    Electric $500-$600.
    Variable tooth gear.

    Monroe Calculating Machine
    Company Founded 1912 ~ On market 1916 ~ Advertised 1917-30
    Monroe Calculating Machine Co., Orange, NJ, New York, NY
    Full keyboard, crank-operated. Electric introduced 1922.
    1916 Price $250
    1924 Prices: Crank-Operated $200-$400; Electric $500-$600.
    Variable tooth gear.
  2. rickgron, 3 years ago
    yes. I don't have the specifics as you do here, but I do have the general info. I just haven't seen one like this anywhere. There are a few that are very similar but not the same. Thanks.

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