AKA (Label): Electronic Calculator, MODEL MM3R, Product number (P/N): MM3R,
Keywords/Tags: MM3R
Date of intro: 1973, Origin: USA (List), Dimensions: 102x76x30mm, Weight: 150g,
Power: Rechargeable,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 17, #Key-Blue: 4, #Key-Red: 2, #Key-White: 11,
Miscellaneous switch: [ON-(Blank) K-(ArrowUp)],
Classification: / Pocket,
Resemblance with: COMMODORE: Minuteman 3R, Made by: COMMODORE (List of all Import-OEM-models for J.C.PENNEY),
Serie-members: J.C.PENNEY: MM3R (version-1) (Oval Keys); J.C.PENNEY: MM3R (version-2) (Rectangular Keys),
Known Serial-numbers: 008196 | 122571 | 131083 (List of all S/Ns from J.C.PENNEY)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: SMITHSONIAN MUSIC