OB 7,5cm Flak (zerst.) is a World War II German coastal artillery bunker located in France. This bunker was part of the Atlantic Wall fortifications built by Nazi Germany along the French coastline. The designation 'OB' refers to 'Objekt' (object), while 'Flak' indicates it was an anti-aircraft artillery position, specifically mounting a 7.5cm gun.
The term '(zerst.)' suggests the bunker was destroyed or damaged. Located in the Gironde department, this structure represents the extensive defensive network constructed by German forces during their occupation of France from 1940 to 1944.