
Don Mattingly Tony Gwynn Multi Signed Cachet Auto Envelope JSA CM07352
Authenticated dual-signed memorabilia — collector grade This autographed cachet envelope is signed by Don Mattingly and Tony Gwynn, uniting two MLB legends on one piece. Mattingly captured the 1985 AL MVP, earned nine Gold Gloves, and was a six-time All-Star for the Yankees. Gwynn, inducted into the Hall of Fame in 2007, won eight NL batting titles and recorded 3,141 career hits.
Collector's Highlights:
- Athletes: Don Mattingly & Tony Gwynn
- Item: Multi-signed cachet envelope (autographed cover)
- Authentication: JSA (James Spence Authentication) — COA included
Backed by JSA, this signed piece carries the third-party assurance serious collectors look for and honors the hitting excellence of two all-time greats. A verified authentic addition that fits seamlessly into any advanced baseball autograph collection and supports long-term value in the memorabilia market.
Authenticated dual-signed memorabilia — collector grade This autographed cachet envelope is signed by Don Mattingly and Tony Gwynn, uniting two MLB legends on one piece. Mattingly captured the 1985 AL MVP, earned nine Gold Gloves, and was a six-time All-Star for the Yankees. Gwynn, inducted into the Hall of Fame in 2007, won eight NL batting titles and recorded 3,141 career hits.
Collector's Highlights:
- Athletes: Don Mattingly & Tony Gwynn
- Item: Multi-signed cachet envelope (autographed cover)
- Authentication: JSA (James Spence Authentication) — COA included
Backed by JSA, this signed piece carries the third-party assurance serious collectors look for and honors the hitting excellence of two all-time greats. A verified authentic addition that fits seamlessly into any advanced baseball autograph collection and supports long-term value in the memorabilia market.
Original: $259.00
-65%$259.00
$90.65Description
Authenticated dual-signed memorabilia — collector grade This autographed cachet envelope is signed by Don Mattingly and Tony Gwynn, uniting two MLB legends on one piece. Mattingly captured the 1985 AL MVP, earned nine Gold Gloves, and was a six-time All-Star for the Yankees. Gwynn, inducted into the Hall of Fame in 2007, won eight NL batting titles and recorded 3,141 career hits.
Collector's Highlights:
- Athletes: Don Mattingly & Tony Gwynn
- Item: Multi-signed cachet envelope (autographed cover)
- Authentication: JSA (James Spence Authentication) — COA included
Backed by JSA, this signed piece carries the third-party assurance serious collectors look for and honors the hitting excellence of two all-time greats. A verified authentic addition that fits seamlessly into any advanced baseball autograph collection and supports long-term value in the memorabilia market.

















