Compare Bob Mahoney [Black Back] values across different grades. See whether grading is worth it based on current prices and PSA gem rates.
Price by Grade
| Grade | Guardian Estimate | Premium vs Raw |
| Raw / Ungraded | $11.40 | — |
| PSA 8 | $805.30 | +6964% |
| PSA 9 | $886.00 | +7672% |
| PSA 10 Gem Mint | $2734.60 | +23888% |
Frequently Asked Questions
Is Bob Mahoney [Black Back] worth grading? A PSA 10 Bob Mahoney [Black Back] is worth $2734.60 vs $11.40 raw — a 23888% premium.
What is Bob Mahoney [Black Back] PSA 10 worth? $2734.60 as of November 2026.