China
People's Republic gold "NYINC Expo" Panda Proof 1 Ounce Medal 1987 PR68 Ultra Cameo NGC, KM-XMB18, Pan-64a. Issued for the 16th New York International Numismatic Convention. Fully brilliant, and well struck, with a slight greenish-gold tint and no flaws worthy of mention.
Estimate: 1800-2200 USD