Mizuhara was a star pitcher and third baseman at Keio University who played against the 1934 U.S. Major League All Stars during their Tour of Japan. From 1936 to 1942, he was the Yomiuri Giants' starting third baseman, winning the
league MVP in '42. During World War II, he was captured and spent four years in a Russian POW camp. In 1950, he returned to manage the Giants. From 1950 to 1960, he led the team to a remarkable eight pennants. This recently discovered card contains a significant error on the back, as the text states that Mizuhara is a member of the Meiji University baseball team, rather than Keio U.