AKA (Label): Model 99 T, Product number (P/N): 99T (99 T),
Keywords/Tags: 99T (99 T)
Date of intro: ~1975, Origin: Japan (List), Dimensions: 118x74x20mm,
Power: 6V: (AAA x4),
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 25,
Miscellaneous switch: [rad-°deg on-off],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Resemblance with: ROYAL: 99T, (Resemblance 033),
Known Serial-numbers: 99T69352410 (99T 69352410) (List of all S/Ns from IMPERIAL)
Collector value: 7.5/10,
Internet: Link-1: VINTAGE CALCULATORS WEB MUSEUM