Sorry for starting this by addressing -1. I was addressing the Team as a whole too. I guess I'll ask none if he has any leader info or anything.
The paper rings around the reels are something different, they will identify the studio, sometimes the lab, sometimes other info. If the prints had them intact, and the team has any pictures of them, they might hold a clue as to the origin and purpose of the print. I've already said why I don't think it was for TV broadcast.