10 Möngö

Mongolia's 1925 coinage series was among the first issued under the Mongolian People's Republic, established just two years earlier with direct Soviet backing following the expulsion of Chinese Qing-era administration and a brief White Russian occupation under Baron Ungern-Sternberg. The Soviet Union effectively supervised the new monetary system, and the coins were struck in Leningrad — a detail that explains the half-silver specification, mirroring contemporary Soviet billon coinage policy rather than any indigenous Mongolian minting tradition.