![Koffing [1st Edition] #1 from Pokemon Japanese Expedition Expansion Pack](https://pokeinvest-japanese-card-images.nyc3.cdn.digitaloceanspaces.com/Expedition_Expansion_Pack/098_Koffing_1.jpg)
Koffing [1st Edition] #1 PSA 10: price & population
PSA 10
$168.69
Raw
$4.67
PSA 10 pop
100
Gem rate
46.7%
A PSA 10 Koffing [1st Edition] #1 from Japanese Expedition Expansion Pack sells for $168.69 — a 3,512% premium over the $4.67 raw price. PSA has graded this card 214 times; 100 came back a 10 (46.7% gem rate), and 83 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $28.72. The jump from 9 to 10 is worth $139.97 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
