Coins of Emperor Daoguang 道光帝 of the Qing dynasty
Temple name Xuanzong of Qing, personal name Minning (旻宁).
1 cash (wén)
Brass, 24 mm. 3.7 g., with square hole.
Obverse – 道寶通光 (Dào Guāng Tōng Bǎo – Daoguang circulating treasure) on Chinese language.
Reverse – Mintmak sighn on Manchu language.
Mintmark ᠪᠣᠣ ᠴᡳᠣᠸᠠᠨ (Boo Chiowаn) – Ministry of Revenue (hùbù, 戶部), Beijing, Zhili province.
Mintmark ᠪᠣᠣ ᠶᡠᠸᠠᠨ (Boo Yuwan) – Ministry of Public Works (gōngbù, 工部), Beijing, Zhili province.
Mintmark ᠪᠣᠣ ᠴᠠᠩ (Boo chang), Nanchang, Jiangxi province.
Mintmark ᠪᠣᠣ ᠰᡠ (Boo Su (Boo U)), Suzhou, Jiangsu province.