Jerry Koosman Baseball Stats by Baseball Almanac
1968 Topps #177 Rookie Stars/Jerry Koosman RC/Nolan Ryan RC/UER Sensational/is spelled incorrectly - Scan of actual card you will receive - NM
Jerry Koosman interview
Tee-Ball All-Star – SABR's Baseball Cards Research Committee
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The All-Random Twins All Star Team - Twinkie Town
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Jerry Koosman Stats, Fantasy & News
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The Baseball Analysts: The WAR Against Age – The Pitchers
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