OB 7.5cm Geschütz is a German World War II coastal artillery bunker located in Norway. This bunker was part of the Atlantic Wall fortifications built by Nazi Germany to defend occupied territories against Allied naval attacks. The designation 'OB' indicates an 'Offene Bauweise' (open construction) design, while '7.5cm Geschütz' refers to the 7.5cm gun that was mounted in this defensive position.
These coastal defense structures were strategically placed along Norway's extensive coastline to protect German naval bases and shipping lanes during the war.