Nolan Ryan & Jerry Koosman Autographed 1968 Topps Rookie Reprint Card #177 New York Mets Auto Grade Gem Mint 10 PSA/DNA Stock #203893 - Mill Creek Sports
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1977 Topps Jerry Koosman
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Postwar Card Sets - Issuu
1977 Topps #300 Jerry Koosman New York Mets Baseball Card
Jerry Koosman autographed Baseball Card (New York Mets ) 1973 Topps #184