Autographed Bert Blyleven Official Major League Baseball inscribed "HOF 11" (MLB Authenticated)

Autographed Bert Blyleven Official Major League Baseball inscribed "HOF 11". Bert was a Major League Baseball pitcher who played from 1970 to 1992. He was a two time All-Star selection in 1973 and 1985. He helped win two World Series championships in 1979