More on the event is here. Source
A large collection: Everyday life in Beijing in winter 1956-1957
The photos are from a Japanese book. 日文版的“岩波写真文库221”——《北京》,刊载了200余幅56~57年冬季的北京的照片 Source
Mao shares a laugh with Kim Il-Sung
摄影 吕厚民 Source
Chinese artists visit Eastern Europe in 1957
The group was led by Fu Baoshi and also included 王临乙、特伟、阳太阳、刘继卤 Source
Mao votes in 1961
Beijing Source
