There are approximately 30-40 signatures on each of these four Buffalo Bills signed footballs circa the 1970s. Three of the four include O.J. Simpson autographs, and all four are NFL Pete Rozelle balls. The footballs hold air for the most part, and there is maybe one indentation on each ball, but nothing that depreciates from the overall quality. The Bills only experienced a three-year window of modest success during the decade under Lou Saban, highlighted by Simpson's MVP season of 1973.