項次 3020

1920 Mongolian “Bird Cover” used in Bayanzurkh local, written in Mongolian with a handdrawn bird to indicate the high emergency of the mail. Extremely scarce early Mongolian express offical covers.

1920年蒙古“飛鳥封”，以蒙文書寫並畫有飛鳥，以反映郵件的極高緊急性。有如鳳毛麟角的官方快信封。