1969 Topps Jerry Koosman

Topps 1968 Jerry Koosman & Nolan Ryan Rookie Card

1969 Topps # 90 Jerry Koosman New York Mets (Baseball Card) EX Mets : Collectibles & Fine Art

Auction Prices Realized Baseball Cards 1969 Topps Jerry Koosman

Jesse Orosco - Cooperstown Expert

1969 Topps, All Star, JERRY KOOSMAN, #434, Mets on eBid United States

Lot Detail - 1968 Topps Mets Rookies #177 Jerry Koosman/Nolan Ryan Rookie Card - PSA VG 3 (MC)

1969 Topps Jerry Koosman

1968 Topps Nolan Ryan/Jerry Koosman Rookie #177 PSA NM-MT 8. , Lot #11932

My Favorite Cards: 1969 Topps Nolan Ryan

Lot of (7) 1969 Topps Baseball Cards with #650 Ted Williams, #424 Pete Rose All-Star, #545 Willie Stargell, #601 Tug McGraw, #90 Jerry Koosman, #550 Brooks Robinson & #20 Ernie Banks

Mets COTW: 1979 Topps Jerry Koosman – Mets360

Jerry Koosman Card 1969 Topps #434