AKA: UNDERWOOD: 420aPD, Product number (P/N): 420PD (420 PD),
Keywords/Tags: 420PD (420 PD) | underwood
Origin: USA (List),
Power: AC,
Display: Type = Display (VFD) (List),
Number of keys: 28,
Decimal switch: [DEC_+-0-2-3-4-5-6-FL], Round switch: [R/O_0-5-9], Miscellaneous switch: [(Blank)-PRINT (Blank)-ACC],
Classification: / Desktop with Display+Printer,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Known Serial-numbers: 6032063 (List of all S/Ns from OLIVETTI)
Collector value: 7/10,