#16 is a DFW CV
From Wikipedia
The C.IV had a single-bay wing cellule and was powered by a 112 kW (150 hp) Benz Bz.III. It was soon replaced in production by the definitive C.V with a two-bay wing cellule and either a 112 kW (150 hp) Conrad C.III or 149 kW (200 hp) Benz Bz.IV. Predictably, the more powerful Benz engine gave significantly better performance.
The C.V's main designer was Heinrich Oelerich, and it was produced in larger numbers than any other German aircraft during World War I. About 2000 were manufactured in DFW and about 1250 licence maufactured by the Aviatik (DFW C.V (Av), designated also as Aviatik C.VI), Halberstadt, LVG, and Schütte-Lanz.
The D.V and its related designs were used as a multirole combat aircraft, for reconnaissance, observation, bombing by Germany and Austro-Hungary during World War I. They were also used by the Ottoman Empire in Palestine. In the hands of a skilled pilot it could outmaneuver most allied fighters of the period. It remained in service until early 1918 though 600 were still in use by the Armistice of 11 November 1918. Most were thereafter scrapped according to Versailles Treaty in 1919.