Koffing
54%of 153 graded came back a PSA 10
How they graded
PSA 10 price guide$40
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 1082$40
PSA 958140 at 9+$15
PSA 811151 at 8+$10
PSA 72153 at 7+—
PSA 60153 at 6+—
PSA 50153 at 5+—
PSA 40153 at 4+—
PSA 30153 at 3+—
PSA 20153 at 2+—
PSA 10153 at 1+—
One grade up
What the next grade costs, next to how the number of copies changes.
PSA 9 to PSA 10
Costs2.7× moreCopies1.4× more$15 to $40 · 58 to 82 copies
PSA 8 to PSA 9
Costs1.5× moreCopies5.3× more$10 to $15 · 11 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.
