Table:
text: 1975 Cleveland Browns season
Exhibition schedule
Exhibition schedule
Week Date_ Opponent Result_ Attendance
1 August 10, 1975 at San Francisco 49ers L 17–13 45560
2 August 16, 1975 Philadelphia Eagles W 14–6 35769
3 August 22, 1975 at Washington Redskins L 23–14 15513
4 September 1, 1975 Buffalo Bills L 34–20 31155
5 September 7, 1975 vs. New York Giants at Seattle W 24–20 20000
6 September 13, 1975 Detroit Lions L 27–24 32341

Question: What day did the team play the Buffalo Bills in the Cleveland Browns' 1975 season show schedule?