AKA (Label): HANIMEX POCKET CALCULATOR, Product number (P/N): ESR23V,
Keywords/Tags: ESR23V
Date of intro: ~1975, Origin: Hong Kong (List),
Power: 3V: (AA x2) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 25, #Key-Black: 24, #Key-Red: 1,
Keyboard Array (Rows x Columns): 05x05,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Known Serial-numbers: 61100597 (List of all S/Ns from HANIMEX)
Collector value: 7/10,