Entrance to the Long Corridor, Beihai Park (北海公园), Beijing
University of Bristol - Historical Photographs of China reference number: Sw18-135. Khaki cloth Kodak Negative Album, 12 cm x 16 cm. 156 negatives (sized 3.25 inches x 5.5 inches, 92mm x 147mm). The album was later labelled P2/XI on the back cover. The entrance to the Long Corridor is on the left. See Ru-s162.