Thought I'd throw this on here incase some do not know who and what he represented for not only baseball, but the black community...
Thompson was born in Oklahoma City, Oklahoma. At the beginning of his career, he was a hard-hitting star for the Monarchs in the Negro American League, playing both infield and outfield. At 17, he played right field in his first season, batting .300. The following year he was drafted into the Army. Thompson was a machine gunner with the 1695th Combat Engineers at the historic Battle of the Bulge.
Sergeant Thompson was discharged on June 20, 1946, and immediately returned to the Monarchs, who were in the midst of capturing the league title. With the start of the major league 1947 season, history was made when Jackie Robinson broke the color line with the Brooklyn Dodgers.
On July 8, 1949, Thompson and Monte Irvin became the first black players for the Giants. Thus Thompson became the only player to participate in breaking the segregation barrier on two different teams. Another first occurred when Thompson batted against Dodgers pitcher Don Newcombe in the same season, becoming the first black batter to face a black pitcher in the majors. And in 1951, after playing a strong role in the Giants' drive to the pennant, Thompson and Irvin teamed with Willie Mays in the World Series to form the first all-black outfield in the majors. (However, for the remainder of his career he played mostly at third base)
Sorry for the long read, just thought it would help you sell it
Great card by the way!!