American cargo ship with seaplanes underway towards France according to the Kriegsnachrichten of the Chef des Admiralstabes der Marine dated Berlin 16 August 1917

An item reported that according to the German naval attache at Madrid, Spain dated 12 August the arrival at Cette [Sète], France on 20 August of an American steam transport with seaplanes was expected.

Source

Bundesarchiv RM-40-622