Introduction to the collection: In 1936, the Second Front Army of the Red Army passed through Zhongdian on its Long March. He Long and Xiao Ke visited Songzanlin Temple in person, visited the living Buddhas and lamas, and presented a pair of brocade silk curtains with the title "Prosperous Ban Tribe". Songzanlin Temple opened its granary to raise more than 20,000 kilograms of grain for the Red Army and supported the Red Army's march north to fight against Japan. This glorious chapter was recorded in the annals of revolutionary history.