Koffing
23%of 2,202 graded came back a PSA 10
How they graded
PSA 10 price, 1st Edition$60
Printings
Every grade, 1st Edition
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 10467$60
PSA 98321,299 at 9+$30
PSA 8+8 at 8.54371,744 at 8+$20
PSA 71261,870 at 7+—
PSA 6531,923 at 6+—
PSA 5341,957 at 5+—
PSA 491,966 at 4+—
PSA 331,969 at 3+—
PSA 201,969 at 2+—
PSA 111,970 at 1+—
One grade up
What the next grade costs, next to how the number of copies changes.
PSA 9 to PSA 10
Costs2.0× moreCopies1.8× fewer$30 to $60 · 832 to 467 copies
PSA 8 to PSA 9
Costs1.5× moreCopies1.9× more$20 to $30 · 437 to 832 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.
