AKA (Label): MODEL 121R, ELECTRONIC CALCULATOR, Product number (P/N): 121R,
Keywords/Tags: 121R
Date of intro: 1976, Origin: Japan (List),
Power: AC, Adaptor: CITIZEN_adaptors: CTZ800R,
Display: Type = Display (VFD) (List),
Number of keys: 24,
Decimal switch: [F-4-3-2-0-A], Round switch: [(Blank)-5/4], Miscellaneous switch: [(Blank)-K],
Classification: / Desktop with Display,
Featuring: Procent, Square root,
Known Serial-numbers: 51106606 (List of all S/Ns from CITIZEN)
Initial Cost Price: DEM298, Collector value: 7/10,