According to Japanese Baseball Cards Checklist & Price Guide, Vintage Edition 3.0, the JRM 41 set has a scarcity factor of R5, meaning that five or fewer copies of this card are known in the hobby.

Masao Date first achieved acclaim as a member of the powerful Ichioka High School teams of the mid 1920s. After graduation, he played for Waseda University from 1928 to 1932. He began his career as a catcher, compiling a record .469 batting average in Big Six University play. By 1931, he had become a pitcher, and was nicknamed "Iron Arm" when he defeated arch rival Keio University in three consecutive games. He was also one of the star pitchers who participated in the 1931 and 1934 U.S. All-Star Tours of Japan.

Size: 2" in diameter

Condition: Ex, o/c left to right.