OB 10.5cm Flak is a World War II German anti-aircraft bunker located in France, part of the extensive Atlantic Wall fortifications. This concrete structure was designed to house a 10.5cm Flak (Flugabwehrkanone) anti-aircraft gun, providing defensive fire against Allied aircraft. The bunker represents the German military engineering efforts during the occupation of France, when coastal defenses were rapidly constructed to protect against potential Allied invasion.
Situated in the strategic coastal region, this fortification would have formed part of the integrated defense network along the French coastline.