OB 7.5cm Geschütz (f) is a German-built World War II artillery bunker located in Brittany, France. This casemate was part of the Atlantic Wall fortifications constructed by Nazi Germany to defend against Allied invasion along the French coast. The bunker housed a captured French 75mm gun, designated as 'Geschütz (f)' indicating it was a 'French gun' repurposed by German forces.
These defensive structures were strategically positioned to control coastal approaches and provide overlapping fields of fire with neighboring bunkers.