Why Pittsburgh's teams all wear black and gold

Why are all Pittsburgh teams black and yellow? - Quora

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Uniform History Pittsburgh Penguins

Why are all Pittsburgh teams black and yellow? - Quora

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Pittsburgh Pirates fans erupt as Marlon Byrd hits a two-out two-RBI single in the first inning of game 3 of the NLDS against the St. Louis Cardinals at PNC Park in Pittsburgh

Cincinnati Bengals to Wear 'Color Rush' White Uniform for This Weekend's Game Against the Pittsburgh Steelers, Sports & Recreation, Cincinnati

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