Another view of this reconnaissance seaplane in the Dardanelles, for the other photo (click here). Note the submarine, and how the Union Jack could be confused with a German cross in certain conditions. Roundels are already worn on the wings. Photo by: François Masnou / Bibliothèque nationale de France - Gallica

'The seaplane 164 is put on the water off the Dardanelles.' See other photo for confirmation of RN serial number 164 (click here). The aircraft type was designated after the serial number of the last aircraft in the first batch of six. The Type 166 is sometimes referred to as the Short S.90 after the construction number of the first, s/n 161. Photo by: François Masnou / Bibliothèque nationale de France - Gallica