May 10, 1963 Source
Liu Shaoqi and Ho Chi Minh embrace in Hanoi in 1963
May 10, 1963 Source
by Covell Meyskens
May 10, 1963 Source
The photo was taken in Hunan at the Fourth Normal School of Changsha (湖南省立第四师范). Source
September 17, 1973 大同华严寺 Source
August 24, 1964 Source Source 2 provides a memoir this photo.
The photos includes 张春桥(左起)、纪登奎、苏振华、李富春、聂荣臻、周建人. It was taken at the Working People's Palace of Culture (i.e. the Imperial Ancestral Hall). Source