Stack's Bowers & Ponterio
Collector's Choice June 2022 Auction 1-3 Jun 2022
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2) Inventions & Discovery. Ancient Chinese Coins. Series 1. 1992. NGC PROOF-69 Ultra Cameo. KM-403.
3) Panda Wildlife Fund. 1997. NGC PROOF-68 Ultra Cameo. KM-1035.
Estimate: $200 - $400