What does the MLB 150 Patch stand for?

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Texas Tech Red Raiders Fanatics Authentic Team-Issued #75 Black Jersey with 150 Patch from the 2017 NCAA Football Season in 2023

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This is the Major League Baseball 150th Anniversary Patch as was worn by all MLB teams during the 2019 season. Designed for commemorative, nostalgic

MLB Major League Baseball 150th Anniversary Patch 2019

Patch Requirements & Instructions - Little League

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