Stack's Bowers & Ponterio
May 2022 Hong Kong Auction 10-16 May 2022
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(t) CHINA. Quartet of 5 Yuan Proofs (4 Pieces), 1992. Inventions & Discoveries Series. Average Grade: CHOICE PROOF.
1) KM-404. Ancient Shipbuilding.
1) KM-404. Ancient Shipbuilding.
2) KM-406. Ancient Kite Flying.
3) KM-407. First Compass.
4) KM-408. Bronze Age metal casting.
Estimate: $200 - $300