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Northern Song Dynasty
Jiayou Yuanbao
(Regular Script, Obverse With Outward-Flaring Corners, Rightward Jia Version)
北宋
嘉祐元寶
(楷書四決退嘉版)
Item number: A4053
Reference number: Yan#740; DCD#141-7
Year: AD 1056-1063
Material: Bronze
Size: 23.6 x 23.7 x 1.2 mm
Weight: 3.95 g
Provenance: Spink 2023
This specimen is a Jiayou Yuanbao (嘉祐元寶), minted during the final era name used by Emperor Renzong (仁宗), the fourth emperor of the Northern Song (北宋) dynasty. Throughout the forty-one-year reign of Zhao Zhen (趙禎), known as Emperor Renzong (仁宗), nine era names were employed in succession.
The physical morphology of the currency conforms to the traditional round coin with a square central aperture common to the Sinospheric cultural sphere. The obverse inscription features the legend Jiayou Yuanbao (嘉祐元寶) rendered in regular script, intended to be read in a clockwise circumscription beginning from the top. The inner rim exhibits a sijue pattern, characterized by the four corners of the central perforation extending slightly toward the diagonals. Within the calligraphic composition, the character Jia (嘉) is notably offset toward the right. The reverse of the coin is plain, featuring no denominations or inscriptions. Specimens of this type are primarily excavated within Shaanxi (陝西). During the Song Dynasty (宋代), the majority of mints in Shaanxi (陝西) were established following the outbreak of the Song-Xia war, specifically from the Qingli (慶曆) era onwards. Other early Song coinage was predominantly produced at the Yongping Mint (永平監) in Raozhou (饒州), the Yongfeng Mint (永豐監) in Chizhou (池州), the Guangning Mint (廣寧監) in Jiangzhou (江州), and the Fengguo Mint (豐國監) in Jianzhou (建州), all of which were situated in the southeast. Additionally, minting operations existed at the Capital Mint (京師鑄錢監), the Baoxing Mint (寶興監) in Hangzhou (杭州), and the Shengzhou Mint (升州錢監), though these functioned on a comparatively smaller scale.
Mintage during the Song dynasty employed the sand-casting method, although the specific procedural details remain obscure. Referencing Tiangong Kaiwu (天功開物) by Song Yingxing (宋應星) of the Ming dynasty, it is inferred that craftsmen first hand-carved a master mother coin. This was used to create a specific quantity of mother coins within sand moulds, which finally served as the patterns for casting currency for circulation. Through the continuous casting process, mother coins would sustain minute wear due to pressure from the moulding sand. This gradually affected the dimensions and the sharpness of the characters, resulting in thickened strokes and rounded transitions within the letterforms. In cases of private minting—where circulating coins were used as mothers for further sand casting—the degree of shrinkage and blurred inscriptions became even more severe. Driven by profit, private minters often produced coins that were thinner and lighter than official currency.
If the moulds were not properly aligned after joining, or if they were subjected to impact, a misaligned axis of the design might occur. After breaking the moulds to retrieve the solidified “coin tree,” craftsmen would detach the coins one by one and stack them, passing a bamboo or wooden strip through the central holes to facilitate simultaneous filing of the edges. If the strip was incorrectly positioned during this process, defects such as a blurred hole or a lozenge-shaped hole would manifest.
Zhao Zhen (趙禎), Emperor Renzong (仁宗), reigned from AD 1022–1063 as the fourth emperor of the Northern Song (北宋) dynasty. His reign was marked by national stability and relative social prosperity, historically lauded as the “Prosperous Reign of Renzong.” Politically, he promoted civil governance and employed eminent officials such as Fan Zhongyan (范仲淹), Bao Zheng (包拯), Han Qi (韓琦), and Ouyang Xiu (歐陽修) to advance reforms in the imperial examinations and bureaucracy. Although frequently opposed by conservative factions, these efforts laid the foundation for the subsequent Xining Reforms. Characterised by a generous and merciful temperament, Renzong was lenient toward his subordinates and adept at accepting remonstrance. Despite the emergence of factionalism, the overall political situation remained stable. During his tenure, he personally adjudicated wrongful imprisonments and advocated for Confucianism and frugality. Diplomatically, he maintained peace treaties with the Liao (遼) and Western Xia (西夏), avoiding large-scale warfare and securing border stability through the payment of annual subsidies, which defined the equilibrium of the mid-Northern Song period.
The monetary system of the Song dynasties was complex; officially circulated currency utilised both copper and iron, supplemented by paper notes. Silver also gradually assumed a position of importance. Copper coins varied in denomination from value-one to value-ten. Different circuits minted currency according to local demand—some utilised only copper, some only iron, and others used both. The calligraphic styles were diverse, encompassing regular, clerical, seal, and slender gold scripts. The simultaneous issuance of coins in multiple scripts began with the Chunhua Yuanbao (淳化元寶) under Emperor Taizong (太宗), while the introduction of “matched coins” (pairs with identical dimensions but different calligraphic styles) likely commenced with the Tiansheng Yuanbao (天聖元寶) during the reign of Renzong (仁宗).