Remembering Mets History (1973): Jerry Koosman Wins April NL Pitcher of the Month
Remembering Mets History (1968): Jerry Koosman Tosses Back to Back Shut Outs As Mets Win 1st Home Opener
Mets to Retire Jerry Koosman's Jersey - The New York Times
Mets Retired Numbers
ORIGINAL 1994 SPECTRUM SERIES. Autograph has been certified authentic by Beckett Authentication (BAS).
JERRY KOOSMAN SIGNED 1969 NEW YORK METS 1994 SPECTRUM #4 BECKETT
The 1969 New York Mets - Helmet Signed With Co-Signers
Jerry Koosman/ Grote 1969 Mets World Champs Licensed Photo File 8 X 10 Photo!
Baseball MLB 1970 Topps #610 Jerry Koosman Mets : Collectibles & Fine Art
1969 Mets OML Baseball Team-Signed by (24) with Tom Seaver, Nolan Ryan, Donn Clendenon, Jerry Koosman, Cleon Jones, Al Weis (JSA LOA)
Jerry Koosman NY Mets Baseball PitcherSigned 8x10 PicturePre-owned
Jerry Koosman NY Mets Baseball Pitcher Signed 8x10 Photo
Mets COTW: 1979 Topps Jerry Koosman – Mets360