The colored hypocycloids that make up the Steelers emblem are yellow (coal), orange (ore) and blue for (steel scrap).
The emblem on the helmet is the old US Steel corporate emblem. The only difference is that where it now says 'Steelers' it used to just say 'Steel'.
Art Rooney
The logo for the Pittsburgh Steelers is a circle with 'Steelers' on the right side and three diamonds to the North, East, and South of it. The colors in the order listed previously are yellow, red, and blue.
It is the Steelmark. The insignia used by the American Iron and Steel Institute. The logo was created by U.S. Steel Corp. now known as USX Corp. The logo is used on the helmet to honor Pittsburgh's steel heritage.
The Steelers and the Packers team names are based on the predominant industry in their home towns. The Packers are named after the business that formed them before the NFL existed, Meat packing. The Steelers are named for the steel-making that Pittsburgh has been known for many years. The emblem on their helmets is actually the company logo for United States Steel corp. The San Francisco 49er's are named for the gold miners that poured in that area after the gold strike of 1849.
It represents the Torah.
The teams emblem is the Steelmark logo. It was created by U.S. Steel and it belongs to the American Iron and Steel Institute. In 1962, Republic Steel of Cleveland suggested the Steelers use the insignia as a logo to honor Pittsburgh's steel heritage.
The Hawaiian royal coat of arms.
The meaning and symbolism of the Marine Corps emblem can be found on the Marine Corps website. The Eagle represents America, the globe represents the Marine Corps worldwide presence, and the anchor represents their history of sea presence.
the (stylized) lily used to be the emblem of French monarchy. The French name of the emblem is 'fleur de lys'
The plow represents labor and tillage of the soil.
giant panda