AKA: Blackjack, 21-P1, Product number (P/N): 21P1 (21-P1),
Keywords/Tags: 21P1 (21-P1) | Blackjack
Date of intro: 1977, Origin: Taiwan (List), Dimensions: 142x80x18mm, Weight: 116g,
Power: 4.5V: (AAA x3),
Display: Type = Display (VFD) (List), Digits = 12,
Number of keys: 25,
Classification: / Pocket / Games,
Main Components: ROCKWELL: A4821EB,
Known Serial-numbers: 228696 (List of all S/Ns from UNISONIC)
Initial Cost Price: USD30.00, Collector value: 7/10,