1947年9月18日,坐落于哈尔滨的东北邮电管理总局发行的“九一八”纪念邮票,是我国唯一一套国耻纪念邮票。这天是“九一八”事变16周年。1931年,日本帝国主义在沈阳制造了“九一八”事变,侵占了我国东北。从此,东北的大好河山与3 000万同胞遭日本帝国主义奴役达14年之久。中国人民永远不会忘记这个日子。 September 18, 1947, located in Harbin, Northeast Post and Telecommunications Administration issued the “September 18” commemorative stamps, is China’s only set of national humiliation commemorative stamps. This day is the 16th anniversary of the “September 18th” incident. In 1931, Japanese imperialism created the “September 18 Incident” in Shenyang and invaded the northeast of our country. Since then, the magnificent rivers and mountains of the northeast have been enslaved by Japanese imperialism for 30 years and 30 million compatriots. The Chinese people will never forget this day.