China
People's Republic Proof "Year of the Dog" 20 Yuan 1982 PR68 Ultra Cameo NGC, KM56. Lunar issue.
https://coins.ha.com/itm/china/china-people-s-republic-proof-year-of-the-dog-20-yuan-1982-pr68-ultra-cameo-ngc-/a/3084-31115.s?type=CoinArchives3084
HID02906262019
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Estimate: 400-500 USD