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Brother Procal 508AY
Casio FX-795P Pocket Computer
CASIO PC FX-730P
HP-97
Konkret 100
Olympia CD60
Privileg LC 10000 Super Timer
Sharp PC-1401
SHARP Pocket Computer PC-1246S
SHARP Pocket Computer PC-1270
SHARP Pocket Computer PC-1403H
SR1 (Schulrechner1)
Texas Instruments SR-10
Texas Instruments TI 1750
Time CALCULATOR, MR 413





Brother Procal 508AY
Brother, 1973
The Brother 508AY PROCAL 508AY is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 22 keys and a VFD (vacuum fluorescent) display. The power source is 4xAA batteries.