Their logo is based on the Steelmark logo. It belongs to the American Iron and Steel Institute. It was created by U.S. Steel Corp, which is now known as USX Corp. The logo contains three hypocycloids (diamond shapes).
In the 1950s, they added players' numbers to either side of their gold helmets. In 1962, Cleveland's Republic Steel suggested that the Steelers use the Steelmark as a helmet logo.
The Steelers are the only NFL team that puts their logo on only one side of the helmet. Today's helmet reflects the way the logo was originally applied and it has never been changed.
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All About the Pittsburgh Steelers
Non-FictionThis book is all the about the Pittsburgh Steelers
