1 Cash - Daoguang Tongbao, Boo-san

发行方 Empire of China
年份 1821-1850
类型 Standard circulation coin
面值 1 Cash
货币 Cash (621-1912)
材质 Brass
重量 4.6 g
直径 24 mm
厚度
形状 Round with a square hole
制作工艺 Cast
方向 Medal alignment ↑↑
雕刻师
流通至
参考资料 Hartill#22.628, FD#2393, Schjoth#1520
正面描述 Four Chinese ideograms read top to bottom, right to left.
正面文字 Chinese (traditional, regular script)
正面铭文  道 寶 通  光
(Translation: Dao Guang Tong Bao Daoguang (Emperor) / Universal currency)
背面描述 Two Manchu words (read vertically) separated by the hole.
背面文字 Mongolian / Manchu
背面铭文 ᠪᠣᠣ ᠰᠠᠨ
(Translation: Boo-san)
边缘 Smooth.
铸币厂
铸造量 ND (1821-1822) - Hartill#22.628: Small San; large Guang -
ND (1823-1831) - Hartill#22.629: Small San; small Guang -
ND (1842-1850) - Hartill#22.630: Large San -
Numisquare 编号 6299974440
附加信息

Historical Context: The 1 Cash Daoguang Tongbao, Boo-san, dates to Emperor Daoguang's reign (1821-1850), a pivotal era of accelerating Qing Dynasty decline. This period saw significant internal unrest and external pressures, including the First Opium War (1839-1842), often leading to variable coinage quality and weight. The "Boo-san" (寶泉) inscription identifies the Board of Revenue mint in Beijing, a central facility producing vast quantities of essential circulating treasures for daily commerce.

Artistry: This coin exemplifies the traditional Chinese calligraphic aesthetic, prioritizing clarity and balance of its inscribed characters. Individual engravers are not typically recorded for these mass-produced cast issues; instead, the artistry reflects standardized imperial script and the skill of master die carvers. The obverse features "Daoguang Tongbao" (道光通寶) in regular script, while the reverse displays the Manchu "Boo-san" (寶泉), denoting the mint of origin and underscoring Qing's dual linguistic heritage.

Technical/Grading: Optimal preservation for this cast brass 1 Cash coin is marked by sharp definition of the four obverse "Daoguang Tongbao" characters and the two reverse Manchu "Boo-san" characters, especially their inner strokes. Key grading high-points include crispness of both inner and outer rims, often weak or irregular from casting. A well-defined central square hole, free from significant casting flash, and a smooth planchet surface without excessive pitting or major flaws, are critical indicators of quality.

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