24 year old rookie Jerry Koosman debuted with the New York Mets in 1967. Koosman pitched in 9 games, including 3 starts, going 0-2 with a 6.04 ERA but
Jerry Koosman number retirement set for June 13 - Amazin' Avenue
Jerry Koosman 1969 Topps All-Star Rookie Card - Mets History
Jerry Koosman Baseball Cards
Jerry Koosman Baseball 1969 Season Sports Trading Cards
Jerry Koosman - Mets History
New York Mets Signed Trading Cards, Collectible Mets Trading Cards
September 12, 1969: Mets pitchers drive in all the runs in
Jerry Koosman 1969 Topps All-Star Rookie Card - Mets History
New York Mets Signed Trading Cards, Collectible Mets Trading Cards
New York Mets Signed Trading Cards, Collectible Mets Trading Cards
Jerry Koosman
Mets Memorabilia
Jerry Koosman Baseball Cards
Jerry Koosman Baseball Cards
Mets Nolan Ryan