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1 Cash - Yongzheng Tongbao, Boo-yuwan
| Issuer | Board of Works (工部), Qing Dynasty |
|---|---|
| Year | 1723-1735 |
| Type | Standard circulation coin |
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| Composition | Log in to see details |
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| Obverse description | Central square perforation surrounded by a raised square rim, with four Chinese characters in regular script (kaishu) arranged in cruciform fashion around the central hole: read top-to-bottom and right-to-left, the legend 雍正通寶 (Yongzheng Tongbao) occupies the four quadrants of the field. The characters are boldly cast in raised relief against a flat, unadorned field. A plain raised outer rim encircles the entire design, typical of Qing dynasty cast cash coinage. |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | 雍 寶 通 正 (Translation: Yong Zheng Tong Bao Yongzheng (Emperor) / Universal currency) |
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| Additional information |
The Boo-yuwan mint (寶源局) operated directly under the Board of Works in Beijing, making it one of only two central government mints during the Qing period — the other being the Board of Revenue's Boo-chiowan facility. Yongzheng's reign saw a serious attempt to rationalize cash coin production after the monetary disorder of the Kangxi years, including stricter controls on brass alloy ratios and periodic crackdowns on the rampant private casting that had flooded markets with underweight pieces.
Hartill 22.155 is among the more frequently encountered Yongzheng types from this mint, though quality consistency varies considerably across the reign's twelve years.