Koffing
27%of 241 graded came back a PSA 10
How they graded
PSA 10 price, Regular$75
Printings
Every grade, Regular
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 1049$75
PSA 958107 at 9+$30
PSA 823130 at 8+$25
PSA 74134 at 7+—
PSA 67141 at 6+—
PSA 52143 at 5+—
PSA 40143 at 4+—
PSA 31144 at 3+—
PSA 21145 at 2+—
PSA 10145 at 1+—
One grade up
What the next grade costs, next to how the number of copies changes.
PSA 9 to PSA 10
Costs2.5× moreCopies1.2× fewer$30 to $75 · 58 to 49 copies
PSA 8 to PSA 9
Costs1.2× moreCopies2.5× more$25 to $30 · 23 to 58 copies
Takes
Population from PSA as of Sep 12, 2026, across every printing. Prices are PSA’s own price guide figures as of Sep 12, 2026.
