Two Manchu words (read vertically) separated by the hole.
Reverse script
Mongolian / Manchu
Reverse lettering
ᠪᠣᠣ
ᠵᡳᠨ (Translation: Boo-jin)
Edge
Smooth.
Mint
Mintage
ND
(1887-1888) - Hartill#22.1388: Tong with one dot; large size (around 24 mm) - ND
(1899-1908) - Hartill#22.1389: Tong with two dots; small size (around 20 mm) -