FABER CASTELL TR-1 (1973)
NIXPORD LK-3000 LEXICOM (1979)
CALCULEX GRADEMATIC 3000 (1991)
CASIO FT-7 "FORTUNE TELLER" (1981)
PANASONIC JE-8210U (1976)
NATIONAL SEMICONDUCTOR 103 "DATACHECKER" (1979)
CALCULEX KITCHEN CALCULATOR (2018)
CASIO BQ-1110 "BIOLATOR" (1981)
CALCULEX PROJECTCALC 8515 (2018)
TI LITTLE PROFESSOR (1976)