Mark McGwire Signed Auto Envelope JSA CM07356
Collector-Grade, JSA-Authenticated autographed memorabilia Mark McGwire signed envelope (CM07356). A 1987 AL Rookie of the Year and 1989 World Series champion with Oakland, McGwire tallied 583 career home runs and set the single-season mark with 70 in 1998 for St. Louis.
Collector's Highlights:
- Profession - Athlete: Mark McGwire
- Item: Autographed envelope (hand-signed)
- Authentication: James Spence Authentication (JSA) — Certification CM07356
Authenticated by JSA, this verified signature offers collectors a clean, display-ready piece tied to one of baseball’s most iconic power hitters. The included JSA COA (CM07356) secures the autograph’s authenticity and supports its long-term collectability and value.
Collector-Grade, JSA-Authenticated autographed memorabilia Mark McGwire signed envelope (CM07356). A 1987 AL Rookie of the Year and 1989 World Series champion with Oakland, McGwire tallied 583 career home runs and set the single-season mark with 70 in 1998 for St. Louis.
Collector's Highlights:
- Profession - Athlete: Mark McGwire
- Item: Autographed envelope (hand-signed)
- Authentication: James Spence Authentication (JSA) — Certification CM07356
Authenticated by JSA, this verified signature offers collectors a clean, display-ready piece tied to one of baseball’s most iconic power hitters. The included JSA COA (CM07356) secures the autograph’s authenticity and supports its long-term collectability and value.
Description
Collector-Grade, JSA-Authenticated autographed memorabilia Mark McGwire signed envelope (CM07356). A 1987 AL Rookie of the Year and 1989 World Series champion with Oakland, McGwire tallied 583 career home runs and set the single-season mark with 70 in 1998 for St. Louis.
Collector's Highlights:
- Profession - Athlete: Mark McGwire
- Item: Autographed envelope (hand-signed)
- Authentication: James Spence Authentication (JSA) — Certification CM07356
Authenticated by JSA, this verified signature offers collectors a clean, display-ready piece tied to one of baseball’s most iconic power hitters. The included JSA COA (CM07356) secures the autograph’s authenticity and supports its long-term collectability and value.
