Compare Bob Trowbridge 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 | $2.30 | — |
| PSA 8 | $175.75 | +7541% |
| PSA 9 | $193.00 | +8291% |
| PSA 10 Gem Mint | $475.67 | +20581% |
Frequently Asked Questions
Is Bob Trowbridge worth grading? A PSA 10 Bob Trowbridge is worth $475.67 vs $2.30 raw — a 20581% premium.
What is Bob Trowbridge PSA 10 worth? $475.67 as of November 2026.