AKA: Carry 91M, AKA (Label): MODEL CITIZEN Carry 91M, ELECTRONIC HANDY CALCULATOR, Product number (P/N): 91M,
Keywords/Tags: 91M | Carry
Date of intro: ~1975, Origin: Japan (List), Dimensions: 130x65x20mm, Weight: 100g,
Power: 3V: (AA x2) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 24, #Key-Black: 12, #Key-Red: 1, #Key-White: 11,
Classification: / Pocket,
Featuring: Procent, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: CITIZEN_docu: (Instr.) 91M; CITIZEN_parts: (Box) 91M,
Known Serial-numbers: 058761 | 065208 (List of all S/Ns from CITIZEN)
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),