Stack's Bowers & Ponterio
September 2021 Hong Kong Auction 2-7 Oct 2021
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CHINA. Quintet of Inventions & Discoveries 5 Yuan (5 Pieces), 1992. All NGC PROOF-68 Ultra Cameo Certified.
1) Ancient Ship Building. KM-404.
1) Ancient Ship Building. KM-404.
2) Seismograph. KM-405.
3) Ancient Kite Flying. KM-406.
4) Compass. KM-407.
5) Bronze Age Um (metal working scene). KM-408.
Estimate: $200 - $400