Two Manchu words (read vertically) separated by the hole.
Reverse script
Mongolian / Manchu
Reverse lettering
ᠪᠣᠣ
ᠰᠠᠨ (Translation: Boo-san)
Edge
Smooth.
Mint
Mintage
ND
(1887-1888) - Hartill#22.1390: Tong with open, square head - ND
(1899-1900) - Hartill#22.1391: Tong with closed head and one dot - ND
(1899-1900) - Hartill#22.1392: Tong with closed head and two dots -