10 NFL records currently held by seven Pittsburgh Steelers
The Soul Of the Game: 1976 Pittsburgh Steelers Defense
Not in Hall of Fame - 5. Jack Ham
Our D isn't called the Steel Curtain for nothing! : r/steelers
The Pittsburgh Steelers all-time 53-man roster
Jack Lambert (American football) - Wikipedia
Andy Russell Steel Curtain Classic (c.1976) Pittsburgh Steelers
How dominant was the Steel Curtain defense? The 1976 Steelers
Top Ten Single Season Defenses in NFL History : #9 1975 Pittsburgh
Jack Ham Calls 1976 Steelers Defense Best They Ever Had - Steelers
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The NFL's best defense that went on to win a Super Bowl: 1969
All-Time Steelers Team – ESPN Honolulu