Hung,
It was never owned by a flight school. Back in the '70s or early '80s he did use it commercially. He had an electric light grid suspended beneath the wings that produced moving messages at night. He would fly over football games and other public gatherings.
The total time I gave is what was in the newspaper ad. I was thinking the total was about 1,000 hours higher. Regardless, it is a low time plane.
I talked to the owner this morning. He was at the center where my wife is taking cardio rehab. He has lost his medical and has decided to sell the plane which he seldom flew any more. He did offer to let me fly it!
Richard