Mark McGwire #BKA-MM
2026 Topps Tier One Autographed Bat Knobs
Grade Your Cards &Save $25
Use Code: PC25
Mark McGwire #BKA-MM Population Report
| Grade | PSA | CGC | Total | Price |
|---|---|---|---|---|
| 1 | - | - | - | |
| 2 | - | - | - | |
| 3 | - | - | - | |
| 4 | - | - | - | |
| 5 | - | - | - | |
| 6 | - | - | - | |
| 7 | - | - | - | |
| 8 | - | - | - | |
| 9 | - | - | - | |
| 10 | - | - | - | |
| Total | - | - | - |
Chart: PSA & CGC Population & Price
Population data for Mark McGwire #BKA-MM 2026 Topps Tier One Autographed Bat Knobs comes from PSA and CGC.
The population counts are updated monthly.
Half grade populations are included in the nearest whole grade numbers. For example: 8.5 is counted in 8.

