Random question, but were there any clues in that cabinet as to places where it was operated? I used to play Sprint 2 all the time at the Smith's Food King off of Fairview & Main St. in Meridian BITD (I think there's a Rite Aid there now). Smith's always had 2 or 3 games right up at the front entrance, and I'll bet the Sprint was in there for at least 5 years, beginning in about 1979.
That was back when there was a Pojo's (when it was a real arcade) in the shopping center over across the street where Albertson's is, another arcade called Mr. Bill's across Main St. in that older western-looking strip mall, plus about 10 other machines spread between the Round Table Pizza and Keystone Pizza that were in those malls. That intersection was the epicenter of arcades in about '82!!