項次 1104

1931 Ulanbator (13 Nov) to Moscow, f.w. Revenue stamp ovpt. Postag 10c + 20c with inverted ovpt variety on reverse, tied by Ulanbator cds. Arrived Moscow (30 Nov). Inverted varieties are very scarce on surch Postag issues. This cover was not recorded by Hellrigl. Addressing to USSR instead of China is also unusual.

1931.11.13 烏蘭巴托寄莫斯科，背貼印花稅票加蓋Postag 10分 + 20分帶加蓋倒蓋變異，銷烏蘭巴托日戳。11.30抵莫斯科。加蓋Postag票之倒蓋例子甚為稀罕，此封未見於Hellrigl的記錄中，寄蘇聯而非中國亦較少見。