Albatros C.I
Airplane used by the Germans in Belgium during WW1

The Albatros C.I was the first of the C-series of two-seat general-purpose biplanes built by Albatros Flugzeugwerke during World War I . The pilot sat in the front cockpit and the observer occupied the rear cockpit which was fitted with a ring-mounted Parabellum MG14 machine gun. (from Wikipedia)