Case for Casio College FX-80 pocket scientific electronic calculator Computing & Data Processing c. 1982
Casio College FX-80 pocket scientific electronic calculator, in carry case. calculator Computing & Data Processing c. 1982
Bowmar 901B pocket electronic calculator with AC adapter and carry case Bowmar 901b Computing & Data Processing c. 1975
Low priced multi-function Pocket calculator retailed by high street chemist outlet Low priced multi-function Pocket calculator Computing & Data Processing c. 1978
Electronic Pocket Calculator by Sharp model Compet ELSI 811 c1970 Sharp Compet ELSI 811 Computing & Data Processing c. 1970
Electronic pocket calculator, by Accurate Electronics Industry Limited, model Conic 750 F, c.1974. Conic 750F electronic calculator Computing & Data Processing 1974
Two Casio batteries from the College FX-80 pocket scientific electronic calculator, by Casio Computer Company Limited, Japan, 1975-1985 Two Casio batteries from the College FX-80 pocket scientific electronic calculator Computing & Data Processing c. 1982
