University of Bristol - Historical Photographs of China reference number: Sw23-004. Khaki cloth Kodak Negative Album, 12 cm x 16 cm. 161 negatives (sized 3.25 inches x 5.5 inches, 92mm x 147mm). The album was later labelled P1/XI on the back cover. Most likely, this photograph shows steam arising from salt wells as the water is evaporated (i.e. condensing salt). See Sw23-005, Sw23-006, and Sw29-153.
Black and white photograph
Archives & Special Collections, SOAS Library, University of London