The calculator section is divided into 4 groups:

  1. Slide Rules
  2. Mechanical & Electronic Calculators
  3. Microcomputers
  4. Misc. Items (Early artifacts, manuals, etc.)
Click on the buttons above the gallery to switch groups. To see a larger image of a slide rule, just click on it.

I tried to get a computer museum started in Minnesota, but things did not work out. I did end up with lots of goodies though!

My interests have changed now that I am retired and all calculating items are being offered on eBay from time to time. I am also open to offers on any item not marked "SOLD". You can contact me by email at: