What is this Seattle Mariners Logo?
Seattle Mariners HY memorial patch, worn in memory of former team owner and Nintendo president Hiroshi Yamauchi
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Hiroshi Yamauchi was owner of the Seattle Mariners from 1992 until his death in 2013, he was also the president of the Nintendo video game corporation from 1949-2002. The Mariners added this patch to the sleeve of their jerseys for the final few games of 2013 as Yamauchi died very late in the season.
