Tibet Third Issue, imperf. Complete sets on philatelic cover, tied
by postmarks of Oga Dzong, transit Chomorak, Gyamda, Meda- gongkur
and
Tibet Third Issue, imperf. Complete sets on philatelic cover, tied
by postmarks of Oga Dzong, transit Chomorak, Gyamda, Meda- gongkur
and Lhasa arrival. No commercial cover of Oga Dzong is known to
exist.
第3版全套无齿票实寄封,在沃卡宗使用,集邮封,但沃卡宗无实 寄封存世,且有错木热、江达、墨竹工卡中转和拉萨到达戳。