上海市历史博物馆珍藏了一份1942年美国援华航空委员会给制的中国西南地区以及印度等国的地形图，它是为开辟中印航线、支援中国抗日战争而特地绘制的，所以对研究抗日战争期间中美关系有一定文物和资料价值。1937年七·七事变后，华北地区相继沦陷，八·一三淞沪抗战后，国民 The Shanghai Museum of History features a topographic map of Southwest China, India and other countries under the aid of the AAC Commission of China in 1942. It was specially designed to open up the China-India route and support the Anti-Japanese War in China. Therefore, Sino-U.S. Relations have certain cultural relics and data values ​​during the war. After the Sept.7 Incident in 1937, North China successively fell into the enemy’s occupation. After the Songshan War of August 13,