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Wu Sangui,
Liyong Tongbao
(duck-bill tong, wide-he li, thin Fonts Version)
吳三桂 利用通寶
(鴨嘴通寬禾利細字版)
Item number: A3659
Reference number: LZ-DMQP#2869
Year: AD 1674-1678
Material: Brass
Size: 23.3 x 23.3 x 1.0 mm
Weight: 3.3 g
Provenance: Spink 2023
This coin was issued in the late Ming and early Qing periods by Wu Sangui, the Prince of Pingxi, who rebelled against both the Ming and later the Qing, establishing an independent regime of his own. It was cast before he proclaimed himself emperor in AD 1678 and belongs to the “Liyong Tongbao” (Liyong Treasure in Circulation) small cash coin series.
The coin follows the traditional form of round coins with a central square hole used throughout the Sinosphere. The obverse bears the inscription “利用通寶” (Liyong Tongbao), read vertically from top to bottom and right to left. The calligraphy is relatively slender. In the character 利 (li), the “禾” radical is wider while the “刂” component is narrow, a variant known as “wide-he li.” The character 用 (yong) connects to the rim but not the central hole. In 通 (tong), the left upper dot of the “辶” radical is written as two dots, and the “マ” component is closed, with the horizontal stroke curved like a duck’s bill—hence called the “duck-bill tong.”
The reverse is plain and uninscribed. Other specimens of Liyong Tongbao may bear additional marks, indicating mint location or value. Coins marked with units of weight denote their value in relation to silver, rather than their physical weight, serving as zheyin qian (“exchange coins”), whose worth corresponded to the prevailing market rate of silver. Those with mint marks were produced in Yunnan and Guizhou, while examples circulating in Hunan were unmarked.
According to scholarly research, the term Liyong does not represent a reign title or state name. Its origin is linked either to the Neo-Confucian principle of liyong housheng (“beneficial use and enrichment of the people”), which emphasised economic pragmatism, or simply to the idea of “usefulness,” marking the coin’s functional purpose as currency. The geographical isolation of Yunnan from the Central Plains made it difficult for imperial coinage from the central government to reach the region in a timely manner. Consequently, even before Wu Sangui’s open rebellion against the Qing, he had already begun to mint his own coins using Yunnan’s abundant copper resources. Yunnan’s trade in tea and minerals with Tibet and Annam (Vietnam) provided the economic foundation to sustain his large military expenditures.
Since the mid-Ming period, the valuation of copper coins against silver had become common practice, though the exchange ratio varied over time. Late Ming and early Qing authorities, amid continuous warfare and monetary instability, introduced zheyin qian (silver-denominated coins) as an attempt to stabilise currency value and restore public confidence, since silver was already widely used and considered more stable. This practice was initiated by the Southern Ming Yongli Emperor in the final years of his regime and later adopted by the Qing under the Shunzhi Emperor, as well as by the Xi dynasty and Wu Zhou regimes. However, due to fluctuations in the silver–copper exchange rate and the persistent practice of melting down coins for copper, the system was eventually abolished during the reign of the Kangxi Emperor.
Wu Sangui, originally a Ming general, surrendered to the Qing and played a decisive role in allowing their forces through Shanhai Pass. He assisted in pursuing the remaining Southern Ming loyalists into Burma, where he personally executed the Yongli Emperor with a bowstring. For these services, he was enfeoffed by the Qing as the “Prince Who Pacifies the West” (Pingxi Wang), governing Yunnan and Guizhou, and became the most powerful Han Chinese figure in early Qing politics. In AD 1673, shortly after the Kangxi Emperor’s accession, the implementation of the “Reduction of the Feudatories” (xuefan) policy provoked Wu Sangui’s discontent. He allied with Geng Jingzhong, the “Prince Who Pacifies the South” of Fujian, and Shang Zhixin, the “Prince Who Pacifies the South” of Guangdong, as well as with the Eastern Ming Kingdom in Taiwan, launching a rebellion under the pretext of avenging the Ming. The uprising was not completely quelled until AD 1681, when Qing forces entered Kunming, forcing Wu Sangui’s grandson to commit suicide.
After taking control of Yunnan in AD 1659, Wu Sangui’s administration faced chronic shortages of central coinage due to the province’s remoteness. He therefore utilised local copper resources to mint coins for circulation in Yunnan and Guizhou, which also spread to Hunan, Sichuan, and Guangxi, and even became common in neighbouring Annam. Following the suppression of Wu’s regime in AD 1681, the Qing court twice ordered the recall of coins minted under his Great Zhou authority. Nevertheless, these efforts were largely ineffective, and Liyong Tongbao coins continued to circulate locally well into the late Qing period.