Four Chinese ideograms read top to bottom, right to left.
Obverse script
Chinese (traditional, regular
script)
Obverse lettering
乾
寶 通
隆 (Translation: Qian Long Tong Bao Qianlong (Emporer) / Universal currency)
Reverse description
Two Manchu words (read vertically) separated by the hole.
Reverse script
Mongolian / Manchu
Reverse lettering
ᠪᠣᠣ
ᠰᡠ (Translation: Boo-su)
Edge
Smooth.
Mint
Mintage
ND
(1736-1747) - Hartill#22.308: Board of Revenue type; Su with flat top - ND
(1748-1755) - Hartill#22.309: Board of Revenue type; Su with curved top - ND
(1748-1755) - Hartill#22.315-316: Broad rims - ND
(1756-1765) - Hartill#22.310-312: Coastal Province type; Tong with closed head - ND
(1788-1794) - Hartill#22.313: Coastal Province type; Tong with open head; small Su - ND
(1788-1794) - Hartill#22.314: Coastal Province type; Tong with closed head; large Su -