Product number (P/N): 88,
Keywords/Tags: 88
Date of intro: 1974, Origin: USA (List), Dimensions: 133x81mm,
Power: 6V: (AA x4), Adaptor: KEYSTONE_adaptors: 375,
Display: Type = Display (Gas disharge) (List),
Number of keys: 18, #Key-Black: 15, #Key-Blue: 3,
Decimal switch: [DECIMAL_Normal-$], Miscellaneous switch: [Off-On],
Classification: / Pocket,
Featuring: Procent,
Known Serial-numbers: 0207925 | 0550252 | C216432 (List of all S/Ns from KEYSTONE)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE CALCULATORS WEB MUSEUM