1968 Topps Baseball Card #177 Nolan Ryan/Jerry Koosman
1968 jerry koosman nolan ryan Values - MAVIN
1968+Topps+-+1968+Rookie+Stars+%23177+Nolan+Ryan%2C+Jerry+Koosman
1968 jerry koosman nolan ryan Values - MAVIN
Card as pictured.
1968 Topps Baseball #177 Nolan Ryan Rookie Card Graded PSA 4 Jerry Koosman
Ezbarterbid, LLC Auction Catalog - Vintage Collectibles and Sports
PSA Magazine: 2022 June #006 by PSA Magazine - Issuu
1968 jerry koosman nolan ryan Values - MAVIN
1968 Topps Mets Rookies (Jerry Koosman/Nolan Ryan)