Mongolia 1971 Copper-Nickel Tugrik. Commemorative issue on 50-th Anniversary of the Revolution. KM-34a.
Graded by NGC as Superb GEM Brilliant Uncirculated NGC MS-67.
Those copper-nickel coins are scarce since most of the mintage was made in Aluminum-Bronze.
However, those copper-nickel coins that available are usually in lower grades, scratched/cleaned/dipped and otherwise messed with.
Finding a decent Copper-Nickel coin of this type is a challenge, but MS-67 makes it a rare coin indeed.
NGC population 1/0.