Calculators

In the early 1970s, “handheld” or “pocket” calculators and computers were introduced. They were small...

Calculator, DIGI-matic

Hand held calculator Simpsons Sears Model Digi-matic 8 Model 41030, S/N 135988. This calculator is...

Calculator, Odhner

Serial No. 39-289679, Desk top mechanical calculator that belonged to Ted Rippon, ALS. It is...