The Dubuque team was a minor league affiliate of the Atlanta Braves, the MLB team Smoltz played for at the time. This specific card is a team-issued or minor league issue from the 1991 season. This is a John Smoltz signed 1991 Dubuque On Card Auto (Atlanta Braves) Bold Black Full Pristine On Card Auto. Athlon Sports Collectibles Certificate of Authenticity