A German Anti-Aircraft Machine Gun Command Car, 1915.

(German Anti-Aircraft Gun System, WWI)

A German Anti-Aircraft Machine Gun Command Car, 

belonging to a BAK (or Flak) Motorized Section (or Battery),

composed of two Daimler-Krupp 7,7-cm L / 27 (K-Flak 14). 

France, circa 1915-16.