http://www.pro-football-reference.com/boxscores/197011080buf.htm
It was probably my 8th birthday present. We sat 2nd or 3rd row, behind the Bills bench. We actually led 14-13 after an OJ Simpson TD, but Cinci returned the ensuing kickoff for a TD. On their kickoff, OJ ripped up a knee, and we didn't score another point. I remember OJ being carried off right in front of us.
I still have the pennant from that game.