Mongolia 1979 40th Anniversary of Battle of Khalka River perf set of 2 unmounted mint, SG 1224-25
Mongolia 1979 40th Anniversary of Battle of Khalka River perf set of 2 unmounted mint, SG 1224-25
Mongolia 1979 40th Anniversary of Battle of Khalka River perf set of 2 unmounted mint, SG 1224-25