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1 Cash - Yongzheng Tongbao, Boo-kiyan
| Issuer | Board of Revenue Mint, Beijing |
|---|---|
| Year | 1723-1735 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | 25 mm |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | 雍 寶 通 正 (Translation: Yong Zheng Tong Bao Yongzheng (Emperor) / Universal currency) |
| Reverse description | The reverse presents two Manchu script characters positioned symmetrically on either side of the central square hole, reading vertically. The right character reads 'Boo' and the left 'Kiyan', together forming the Manchu name of the Board of Revenue Mint in Beijing (Boo-kiyan). The inscription is rendered in bold, fluid Manchu strokes within a plain raised rim, consistent with the casting standards of the Imperial Board of Revenue Mint. |
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| Additional information |
The Board of Revenue Mint in Beijing — known in Manchu as Boo-kiyan — was one of two imperial mints operating within the capital during the Yongzheng reign, the other being the Board of Works facility. Both produced cash coins simultaneously, distinguished by their mint marks, creating a parallel supply intended to meet the enormous monetary demands of the empire's internal commerce. The Yongzheng emperor was notably preoccupied with standardizing coin quality and weight across provincial mints, issuing repeated edicts criticizing the irregular and underweight cash being produced outside the capital.
Hartill 22.162 is among the more frequently encountered varieties from this reign, consistent with Boo-kiyan's position as a primary production mint rather than a secondary or ceremonial one.