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NFL: 6 Ugly Uniforms Players Had to 
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Evolution of the Pittsburgh Steelers Jersey
Pittsburgh Steelers Uniform and Team /cdn.vox-cdn.com/uploads/chorus_image/image/62201089/usa_today_10416982.0.jpg)
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Pittsburgh Steelers Uniform and Team 
The Gridiron Uniform Database
uniforms of the Pittsburgh Steelers /cdn.vox-cdn.com/uploads/chorus_image/image/64879885/usa_today_11871727.0.jpg)
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NFL: 6 Ugly Uniforms Players Had to 
Evolution of the Pittsburgh Steelers Jersey
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The Gridiron Uniform Database