NFL 1962 season, map with helmets/jerseys & final standings + offensive stats leaders; champions: Green Bay Packers./+ Chart: NFL teams' helmet-logos and changes in design in a 10-year span (1953 to 1962
The Voice of the American Steel Industry
History of Steel and the Steelmark - American Iron and Steel Institute
Steelers logo and some history behind the team
Image from Industrial Design Magazine using the Steelmark. Reproduced
American Iron and Steel Institute - Best-in-class advocacy
Story behind the Pittsburgh Steelers logo
What does the Steelers logo mean? - Quora
Pittsburgh Dad on Steelers V pats******
Steelmark Emblem American Iron and Steel Institute Vintage - Norway