Ming Dynasty. ND (ca. 17th Century), 9 Tael 5 Mace Official Agricultural Tax Sycee of Chongqing. 352.60 grams. Hand-engraved inscription of denomination and issuer signature on the obverse. Curled rims as struck. Covered with dark toning, probably from water salvage. Very Rare. Extremely Fine. Estimated Value $4,000 - UP