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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.