1950 and 1954 a pair of domestic covers from Inner Mongolia, f.w. C20N $800 and S8 $2000, tied by Inner Mongolia Langshannongchang and
1950 and 1954 a pair of domestic covers from Inner Mongolia, f.w. C20N $800 and S8 $2000, tied by Inner Mongolia Langshannongchang and Xinghe Chinese-Mongolian bilingual cds respectively.1950及1954年一對內蒙寄國內封，貼紀20N 800元及特8之2000元，分別銷“內蒙 / 狼山農場”及“內蒙 / 興和”蒙文三格點線日戳。
