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Additional Pictures 

 

Product Label Style 1, 6-digit Serial Number.
(June 1975) Sept. 1975 - January 1976 (USA).

Product Label Style 2, 7-digit Serial Number.
January 1976 - February 1976 (USA).

Product Label Style 3, 7-digit Serial Number.
(Aug 1975) March 1976 - Sept. 1976 (USA).

Product Label Style 4, A Series.
October 1976 - May 1977 (USA).

Product Label Style 4, B Series.
October 1976 - tbd (USA).


Product Label Style 5, Repair Label.
June 1975 - tbd (USA).


Made in Hong Kong.
Product Label Style 4, 7-digit Serial Number.

   


If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, June 28, 2021. No reprints without written permission.