This is a beautiful cover from a J E Stepanek in the Jewish ghetto in Shanghai China to Boulder, USA. Great cancels and markings. In excellent condition. Postmarked April 5, 1947. Before and during world war 2 many Jews fleeing Nazi persecution took refuge in Shanghai China forming a ghetto. After the war, with the Nazi's defeated, and civil war in China heatingUp, many sought to go to Palestine or the USA. Nice envelope. UNRRA refugee camp.