University of Bristol - Historical Photographs of China reference number: Ro-s154. Handwritten caption in biro on the back of the photograph, by Malcolm Rosholt. Four of the submarines can be identified as Royal Navy (i.e. British), left to right: PANDORA (PD), ODIN (OD), OSWALD (OW) and PROTEUS (PR). Two Union Jack (i.e. British) flags are on the bows of two submarines. On the roof of the godown: "W Co". See Ro-n0758.
Five submarines by a godown, Shanghai