[RightGeek]

We must be of similar vintage. I remember using old electromechanical calulators from Friden (and others)

And then a professor did a deal with Wang and we got some of their early models with Nixie tubes and card reader for programming

[Fishtalk]

If you wanted to multiply 587 x 7, you put a finger in the 5,another finger on. The 8, another finger on the 7. Once you fingers in place, you pushed all three keys Down at same time five times! Answer showed up in little window.

never punch the number 7 for the number 7. Use 3 then number 4. 9 is 5 then number 4.

Can,t make it up.