PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.98 |
| PSA 9 | $14 |
| PSA 10 | $39.69 |
| BGS 10 | $52 |
| CGC 10 | $24 |
| SGC 10 | $24 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-20th-anniversary/pokemon-japanese-20th-anniversary-koffing-1st-edition-48