Ranking NFL's current throwback jerseys: Eagles' perfect 'Kelly Green'; high marks for Patriots, 49ers
No throwback uniforms for the Steelers, no problem - Behind the Steel Curtain
Steelers unveil Throwback Jersey
Pittsburgh Steelers: How They Went from Pirates to Steelers, News, Scores, Highlights, Stats, and Rumors
Ranking NFL's current throwback jerseys: Eagles' perfect 'Kelly Green'; high marks for Patriots, 49ers
Enemy Camp: A peak behind the steel curtain
Pittsburgh Steelers reveal updated throwback uniforms, can 'bumblebee'
Pittsburgh Steelers jersey, helmet have gone through a series of quirks and changes - Uni Watch - ESPN
Steelers Throwback Thursday: Levon Kirkland career retrospective - Steel City Underground
Steelers announce dates for color rush and throwback uniforms in 2019 - Behind the Steel Curtain