1917 G.VII G.550/17
two 260 Mercedes D.IVa
info from Kees Kort
Gotha G.VII or GL.VII (GL meaning Großflugzeug Leicht - sort of Light version). Experts differ somewhat but seem to agree that the G.VII and GL.VII is one and the same type. This is the prototype, later production machines differed a lot. The construction of this machines was patented by Gotha. Dating from about 1917.