Mark McGwire 16x20 Photo SIGNED BAS COA
Updated August 6, 2026
This auction ended on August 12, 2026.
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| Lot number | 0298 |
| Estimate | $50 - $100 |
| Opening bid | $30 |
| Auction | Sports Cards & Memorabilia, Comics +++ |
| Date | August 12, 2026 at 12:00 PM EDT |
| Auction house | Grant Zahajko Auctions, LLC |
| Location | Davenport, Washington |
Mark McGwire signed 16 x 20 in. photo. Beckett Authentication Services # BW78146. Lot measures 16 x 20 x .125 in. for shipping purposes only. The absence of a condition report does not imply that the
