AKA (Label): MODEL No. 811ESR, Product number (P/N): 811ESR,
Keywords/Tags: 811ESR
Date of intro: 1975, Origin: Japan (List),
Power: 6V: (AA x4) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 12,
Number of keys: 25,
Classification: / Pocket,
Featuring: Square root, PI,
Known Serial-numbers: 8110042 (List of all S/Ns from KOVAC)
Collector value: 7/10,