項次 1170

1950s a group of 4 outgoing covers from Mongolia, f.w. various types of commemorative issues, including 30th Anniv of Revolution, Mongol-Soviet Friendship etc.

1950年代一組四件蒙古寄國外封，貼多套紀念票，包括革命三十週年、蒙蘇友誼等。