Jerry Koosman NY Mets Baseball Pitcher Signed 8x10 Photo – Venus Vintage Thrift & Antiques
1969 Mets OML Baseball Team-Signed by (24) with Tom Seaver, Nolan Ryan, Donn Clendenon, Jerry Koosman, Cleon Jones, Al Weis (JSA LOA)
Honoring Keith Hernandez's No. 17 jersey retirement with 17 stories of the Mets lifer - The Athletic
Jerry Koosman Baseball Stats by Baseball Almanac
Induct Jerry Koosman Into Hall of Fame
With Little to Celebrate, Mets Honor a Title-Winning Team - The New York Times
Jerry Koosman Autographed Jersey - Mets History
Lot Detail - Nolan Ryan, Jerry Koosman, Tom Seaver, & Gentry Signed Framed 11x14 New York Mets Photo
Nolan Ryan // Jerry Koosman (New York Mets) // 1968 Topps Baseball #177 RC Rookie Card // PSA 6 (B) - Major League Memorabilia - Touch of Modern
The 1969 New York Mets - Helmet Signed With Co-Signers
This Date In Mets History: September 7 — Kooz's Streak Concludes, Maz Makes His Debut - Amazin' Avenue
Nolan Ryan/Jerry Koosman (New York Mets) 1968 Topps Baseball #177 RC Rookie Card - PSA 4 (G) : Collectibles & Fine Art
Jerry Koosman Trades and Transactions by Baseball Almanac