Jerry Koosman Signed 8x10 New York Mets Photo JSA AL44229 – Sports Integrity

Jerry koosman hi-res stock photography and images - Alamy

Jerry Koosman Signed OML Baseball (Beckett)

Jerry Koosman MLB Original Autographed Items for sale

Featured is a Jerry Koosman signed 8x10 photo. This photo has been hand signed by Koosman on and comes with the JSA hologram and certificate of

Jerry Koosman Signed 8x10 New York Mets Photo JSA AL44229

Mets History: Jerry Koosman led the league in two very different stats in 1977

Jerry Koosman MLB Original Autographed Items for sale

Jerry Koosman MLB Original Autographed Items for sale

Humble Jerry Koosman joins Mets hopefully-expanding pantheon with number retirement

How New York Mets signed pitcher Jerry Koosman thanks to eagle-eyed Staten Islander

Jerry koosman hi-res stock photography and images - Alamy

Jerry koosman hi-res stock photography and images - Alamy