AKA: National, Product number (P/N): JE391,
Keywords/Tags: JE391 | National | 391
Date of intro: ~1986, Dimensions: 117x82x70mm,
Power: Solar,
Display: Type = Display (LCD) (List), Digits = 8+1,
Number of keys: 22, #Key-Black: 20, #Key-Orange: 1, #Key-Yellow: 1,
Classification: / Pocket / Foldover, Flip,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Initial Cost Price: 3900 JPY (€ 31,59), Collector value: 6/10,