Two Manchu words (read vertically) separated by the hole.
Reverse script
Mongolian / Manchu
Reverse lettering
ᠪᠣᠣ
ᡴᠶᠠᠨ᠋ (Translation: Boo-kiyan)
Edge
Smooth.
Mint
Guizhou Mint, Dading Branch,modern-day Dafang County, Guizhou, China (1787-1861) Guizhou Mint, Guiyang Branch,China (1759-1908)
Mintage
ND
(1796-1798) - Hartill#22.508: Tong with closed head; Board of Revenue type - ND
(1796-1798) - Hartill#22.509: Tong with closed head; Local variation - ND
(1799-1820) - Hartill#22.510: Tong with open head; Bei with six strokes - ND
(1799-1820) - Hartill#22.511: Tong with open head; Bei with seven strokes - ND
(1799-1820) - Hartill#22.512: Tong with open head; smaller characters -