1946-1950 a group of 4 Northeast Liberated Areas covers, f.w. Mao's and its surch issues as well as Siman Area Pamianchang issues, along
1946-1950 a group of 4 Northeast Liberated Areas covers, f.w. Mao's and its surch issues as well as Siman Area Pamianchang issues, along with censor mark.1946至1950年一組四件東北解放區封,分別貼毛像及其加蓋改值票,以及西滿區八面城票,另鈐檢查章。