
Impostor Professor Oak #73 — PSA 10
Base Set · 1999
PSA 10 value
$350
avg. of last 3 PSA 10 sales, 2026-10-05 · +0.1% over 30 days
PSA 9
$77.33
PriceCharting, 2026-10-05
Ungraded
$8.73
PriceCharting, 2026-10-05
Value by grade
| Grade | PSA population | Value | × ungraded | Source |
|---|---|---|---|---|
| PSA 10 | — | $350 | 40.1× | avg. of last 3 PSA 10 sales, 2026-10-05 |
| PSA 9 | — | $77.33 | 8.9× | PriceCharting, 2026-10-05 |
| Ungraded | — | $8.73 | 1.0× | PriceCharting, 2026-10-05 |
PSA 10 value over time
PriceCharting's PSA 10 price for this card, 2021-11-01 to 2026-10-01.
Recent PSA 10 sales
| Date | Price |
|---|---|
| 2026-06-02 | $350 |
| 2026-05-05 | $400 |
| 2026-03-31 | $300 |
| 2026-02-03 | $299 |
| 2025-09-27 | $300 |
| 2025-09-25 | $299 |
| 2025-06-02 | $300 |
| 2024-10-20 | $129 |
| 2024-10-03 | $80.00 |
| 2024-07-06 | $204 |
Recorded sales of this slab grade, as last read from PriceCharting.
Is it worth grading?
Grading pays off only if the chance of a 10 is high enough to cover the fee and the risk of a 9. Set your own numbers; the prices are filled in from this page.







