File:Vintage Casio-Mini Electronic Pocket Calculator, Model CM-602, 6 Digit Fluorescent Display Made In Japan, Circa 1973 (14184440031).jpg - Wikimedia Commons
Black Simple Casio Calculator, Model Number: HL-4A, | ID: 19932979312
I owned one of these Casio pocket calculators back in high school which cost $80 in the late 1970s to the early 19… | Calculator, Vintage electronics, Old computers