1957 Pittsburgh Steelers season Tags: National Football League Season.The 1957 Pittsburgh Steelers season was the team’s 25th season in the National Football League. For the first time the Steelers’ yellow helmets sported uniform numbers. Pittsburgh would use these uniforms through the 1961 season. coach Buddy Parker predecessor 1956 Pittsburgh Steelers season successor 1958 Pittsburgh Steelers season team Pittsburgh Steelers year 1957-01-01T00:00:00+02:00 Learn more... Loading...