UnlimitedImposter Professor Oak's Invention
41%of 44 graded came back a PSA 10. A small sample, so one grade moves it.
How they graded
PSA 10 price guide$50
Printings
- 1st Edition53PSA 10s of 127
- Unlimited18PSA 10s of 44
Every grade
Every grade
Copies at each grade, how many sit at that grade or higher, and PSA’s price where it lists one.
GradeShare of copiesCopiesPSA price
PSA 1018$50
PSA 91432 at 9+$30
PSA 8739 at 8+$15
PSA 7342 at 7+—
PSA 6143 at 6+—
PSA 5144 at 5+—
PSA 4044 at 4+—
PSA 3044 at 3+—
PSA 2044 at 2+—
PSA 1044 at 1+—
One grade up
What the next grade costs, next to how the number of copies changes.
PSA 9 to PSA 10
Costs1.7× moreCopies1.3× more$30 to $50 · 14 to 18 copies
PSA 8 to PSA 9
Costs2.0× moreCopies2.0× more$15 to $30 · 7 to 14 copies
Takes
Population from PSA as of Sep 12, 2026. It counts grading submissions, not every copy that exists. Prices are PSA’s own price guide figures as of Sep 12, 2026.









