Casio 121-B or AS-B Desktop Calculator
Image Courtesy Andy Anderson
Nixie tube-display calculator, using horizontal form-factor. Model 121-B
and AS-B are identical machines with two different model numbers. Photo shows
model 121-B, but AS-B is identical with exception of model number.
Looking for either or both machines. 12-Digit, four-function with accumulating
memory register. AC-Powered.
See the exhibit on the Sperry Remginton EDC-1201GT
"Lektronic", which was a re-badged Casio 121-B
sold into North American Markets by Sperry Remington.