This technique was devised by family members of the 东北机器制造厂. Source
李宗津, 铁路工人像, 1955
Source
Artists collect folk songs at Sanmen Xia in 1956
The photo includes 汪观清与黄裳(前排)、郑家声(后排左一)、徐正平(后排左三). Source
High school friends row a boat around a lake in Zhengzhou in 1973
Zhengzhou, Henan (西流湖公园) Source
Doing art repair work at the Beijing Palace Musuem in 1978
They are repairing 春秋时期的青铜立鹤方壶. Source
GMD troops engage in R and R in 1947
February 1947 It is not entirely clear who the foreigners are. They are probably American military personnnel and journalists. Source
