AKA: underwood 500, Product number (P/N): 500,
Keywords/Tags: 500 | underwood
Origin: Brasil (List),
Power: AC,
Display: Type = Display (VFD) (List),
Number of keys: 33,
Decimal switch: [DEC_+-0-2-3-FL], Round switch: [R/O_0-5-9], Miscellaneous switch: [ACC-(Blank) (Blank)-PRINT],
Classification: / Desktop with Display+Printer,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Known Serial-numbers: 4379025 (List of all S/Ns from OLIVETTI)
Collector value: 7/10,