Mark McGwire Signed Autographed Baseball
Updated November 1, 2026
| Lot number | 898 |
| Auction | Championship Legends: Signed Balls, Jerseys Athlete Showcase |
| Date | November 22, 2026 at 7:00 PM EST |
| Auction house | Gulf Coast Auctions |
| Location | Bonita Springs, Florida |
Up for auction is an official-size baseball autographed across the sweet spot by MLB legendary slugger and home run record holder Mark McGwire, accompanied by certification. Subject: Mark McGwire (First Baseman / Oakland Athletics / St. Louis Cardinals) Item Type: Autographed Baseball Authentication: Authentication Pros (COA #988223) with tamper-proof hologram Signature: Clean blue pen autograph across the sweet spot. Condition: Excellent display condition. Please inspect all photos for exact details.
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