Pittsburgh Steelers Trivia

'62 steelers helmet
Originally uploaded by TigerTigerTiger.
"Do you know why the Steelers are now the only team in the NFL to sport a logo on only one side of the helmet? The Steelers steelmark logo was originally only applied to one side of the helmet (the right side) because the Steelers were uncertain how it would look on their solid gold helmets.

Even when they later switched their helmet color to solid black, they decided to permanently retain the logo on just the one side due to the team's new success and the interest generated by the logo's uniqueness. "

See this post from About.com for more Steelers trivia