
Tom Seaver, Jerry Grote, Jerry Koosman Multi Signed Auto 24x36 Baseball Poster JSA CM07493
Collector Grade, JSA-authenticated autographed and multi-signed memorabilia poster featuring Tom Seaver, Jerry Grote, and Jerry Koosman. Seaver is a Hall of Famer, three-time NL Cy Young winner, 12-time All-Star, and the ace of the 1969 World Series champion New York Mets. Koosman, a two-time All-Star, won Games 2 and 5 in the 1969 Fall Classic to help clinch the title. Grote, a two-time All-Star and defensive anchor behind the plate, was a central figure of the “Miracle Mets.”
Collector's Highlights:
- Athletes: Tom Seaver, Jerry Grote, Jerry Koosman
- Item: Multi-signed 24x36 baseball poster
- Authentication: JSA COA (Certification #CM07493)
Backed by a JSA Certificate of Authenticity, this verified authentic piece offers reliable long-term collectability and confidence in the signatures. A meaningful slice of Mets history signed by the Hall of Fame ace and his championship battery-mate and rotation partner, it’s a display-ready centerpiece for any serious baseball autograph collection.
Collector Grade, JSA-authenticated autographed and multi-signed memorabilia poster featuring Tom Seaver, Jerry Grote, and Jerry Koosman. Seaver is a Hall of Famer, three-time NL Cy Young winner, 12-time All-Star, and the ace of the 1969 World Series champion New York Mets. Koosman, a two-time All-Star, won Games 2 and 5 in the 1969 Fall Classic to help clinch the title. Grote, a two-time All-Star and defensive anchor behind the plate, was a central figure of the “Miracle Mets.”
Collector's Highlights:
- Athletes: Tom Seaver, Jerry Grote, Jerry Koosman
- Item: Multi-signed 24x36 baseball poster
- Authentication: JSA COA (Certification #CM07493)
Backed by a JSA Certificate of Authenticity, this verified authentic piece offers reliable long-term collectability and confidence in the signatures. A meaningful slice of Mets history signed by the Hall of Fame ace and his championship battery-mate and rotation partner, it’s a display-ready centerpiece for any serious baseball autograph collection.
Description
Collector Grade, JSA-authenticated autographed and multi-signed memorabilia poster featuring Tom Seaver, Jerry Grote, and Jerry Koosman. Seaver is a Hall of Famer, three-time NL Cy Young winner, 12-time All-Star, and the ace of the 1969 World Series champion New York Mets. Koosman, a two-time All-Star, won Games 2 and 5 in the 1969 Fall Classic to help clinch the title. Grote, a two-time All-Star and defensive anchor behind the plate, was a central figure of the “Miracle Mets.”
Collector's Highlights:
- Athletes: Tom Seaver, Jerry Grote, Jerry Koosman
- Item: Multi-signed 24x36 baseball poster
- Authentication: JSA COA (Certification #CM07493)
Backed by a JSA Certificate of Authenticity, this verified authentic piece offers reliable long-term collectability and confidence in the signatures. A meaningful slice of Mets history signed by the Hall of Fame ace and his championship battery-mate and rotation partner, it’s a display-ready centerpiece for any serious baseball autograph collection.

















