49ers could wear throwback alternate uniform up to three times this season
49ers to wear black alternate uniforms, have black end zones vs. Cardinals in Week 12 - Niners Nation
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Source: 49ers to introduce new alternate uniform for 2018 - Niners Nation
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Photo gallery of 49ers new throwback alternate uniforms for 2018 - Niners Nation
Broncos Film Room: North Carolina running back Michael Carter could be intriguing Day 3 option – The Denver Post
49ers First Alternate Uniform San francisco 49ers football, 49ers football, Sf 49ers
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San Francisco 49ers - Wikipedia