Yongle?Tongbao CoinSuggested Period: Yongle Reign, Ming DynastyDimensions: Diameter 24.88?mm (0.98?in), Thickness 1.47?mm (0.06?in)Variants: Official small?denomination cash coin of the Yongle reign. Obverse bears regular?script characters “Yongle Tongbao”, reverse plain and uninscribed.Condition: Traditional sand?cast square?hole round cash coin. No cracks, perforations or severe warping; no modern tool?alteration or post?repair.The coin is covered in deep, mellow mixed patina from circulation and burial, with scattered light?green copper corrosion spots across the fields. The regular?script “Yongle Tongbao” characters are sharp, distinct and well?defined. The plain reverse has smooth fields. The square central hole is well?formed, retaining original mint?finishing abrasion. The outer rim is well?proportioned, with minor wear from historical circulation. Original casting texture, patina and corrosion are authentic, without artificial cleaning or retouching. Overall condition is good.Object DescriptionThis is an officially?cast small?size Yongle Tongbao cash coin produced during the Yongle reign of the Ming Dynasty, an early?Ming official circulating currency. Following the classic square?hole round?coin format, it features regular?script “Yongle Tongbao” on the obverse and a plain reverse without mint or weight markings.Issued under the Yongle Emperor, Yongle Tongbao circulated domestically and was widely used for tributary exchanges and overseas trade. Specimens are frequently unearthed across East and Southeast Asia, making it key physical evidence for Ming?era foreign contact and commerce. Well?cast with dignified calligraphy and untouched original patina, this standard?type specimen serves as tangible material for the study of Ming?dynasty minting technology and Sino?foreign trade, possessing both numismatic?collecting and historical?research value.