PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.84 |
| PSA 9 | $45.16 |
| PSA 10 | $142.75 |
| BGS 10 | $186 |
| CGC 10 | $86 |
| SGC 10 | $86 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-undone-seal/pokemon-japanese-undone-seal-chinchou-1st-edition-42