China
People's Republic silver Proof "Sinkiang Autonomous Region" 5 Ounce Medal 1985, KM-XMB4. Mintage: 1,400. Commemorating the northwestern Sinkiang region of China. Sold encapsulated, with original case of issue and mint certificate.
https://coins.ha.com/itm/china/china-people-s-republic-silver-proof-sinkiang-autonomous-region-5-ounce-medal-1985-/a/61165-97256.s?type=CoinArchives61165
HID02906262019
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Estimate: 200-300 USD