AKA: CONTEX 21, AKA (Label): CONTEX 21, Product number (P/N): D21,
Keywords/Tags: D21 | CONTEX
Date of intro: ~1974, Origin: Denmark (List),
Power: AC,
Display: Type = Display (LED) (List), Digits = 16, Extra Display features: Type = Display (Incandescent bulb) (List), Quantity = 2,
Number of keys: 20, #Key-Grey: 9, #Key-White: 11,
Indicators: (Minus) OVF,
Classification: / Desktop with Display,
Known Serial-numbers: 034001633 (List of all S/Ns from REX-ROTARY)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),