Story behind the Pittsburgh Steelers logo
Why Steelers' logo is only on one side of the helmet: History and meaning of Pittsburgh's logo
Story behind the Pittsburgh Steelers logo
Did the Pittsburgh Steelers literally steal their emblem from the American Iron and Steel Institute, or was it the other way around? - Quora
Steelmark' logo designed by Lippincott and Margulies, 1958 for the
Pittsburgh Steelers Logo History: Unchanged, the Way They Like It
American Iron and Steel Institute - Best-in-class advocacy
Reply to @steelers Pittsburgh Steelers helmet history #pittsburghstee, Pittsburgh Steelers
House of The Steel Ring Champions
Steelers logo and some history behind the team