Stack's Bowers & Ponterio
May 2022 Hong Kong Auction 3-9 May 2022
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(t) CHINA. Group of Year of the Cock Brass Official Mint Medals (10 Pieces), 1981. All NGC Certified.
1-6) NGC Proof-69 Ultra Cameo.
1-6) NGC Proof-69 Ultra Cameo.
7-9) NGC Proof-68 Ultra Cameo.
10) NGC Proof-67 Ultra Cameo.
Estimate: $700 - $1000