China
People's Republic 3-Piece Lot of Certified gold & silver Colorized "Peking Opera Masks" Proof Set 2011 PR70 Ultra Cameo NGC,
1) silver "Shan Xiongxin" 10 Yuan, KM1986
2) silver Lu Zhishen" 10 Yuan, KM1985
3) gold "Guan Yu" 100 Yuan, KM1987. AGW 0.2496 oz.
Peking Opera - Series II. Sold with three COAs, all numbered 22642.
https://coins.ha.com/itm/china/china-people-s-republic-3-piece-lot-of-certified-gold-and-silver-colorized-peking-opera-masks-proof-set-2011-pr70-ult/a/3084-31111.s?type=CoinArchives3084
HID02906262019
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Estimate: 400-500 USD