Share your favorites on Show & Tell

Monroe high speed adding calculator

In Office > Calculators > Show & Tell.
kjdixo's likes12 of 311962-cameras-rolleiflex grey 'baby' 127 film , 4*4, tlr.Copper Table Lamps
2
Love it
4
Like it

kjdixokjdixo likes this.
VintageArgentinaVintageArgentina likes this.
LostinspaceLostinspace likes this.
fhrjr2fhrjr2 loves this.
packrat-placepackrat-place loves this.
KeeDeeKeeDee likes this.
See 4 more
Add to collection

    Please create an account, or Log in here

    If you don't have an account, create one here.


    Create a Show & TellReport as inappropriate


    Posted 11 years ago

    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?

    Unsolved Mystery

    Help us close this case. Add your knowledge below.

    logo
    Calculators
    See all
     Alkaline Hewlett Packard Calculator Battery CASE HP 35, 45, 55, 65, 67, and 80
    Alkaline Hewlett Packard Calculato...
    $17
    Gummy Wheel Repair Hewlett Packard Calculator HP-65, 67, and HP-97
    Gummy Wheel Repair Hewlett Packard ...
    $5
     Rechargeable HP Calculator Battery Classic CASE HP 35, 45, 55, 65, 67, 80
    Rechargeable HP Calculator Battery...
    $19
    PX41C a HP41C calculator kit
    PX41C a HP41C calculator kit...
    $65
    logo
     Alkaline Hewlett Packard Calculator Battery CASE HP 35, 45, 55, 65, 67, and 80
    Alkaline Hewlett Packard Calculato...
    $17
    See all

    Comments

    1. fhrjr2 fhrjr2, 11 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, 11 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.

    Want to post a comment?

    Create an account or login in order to post a comment.