OB 10.5cm Geschütz is a German World War II coastal artillery bunker located in Norway. This type of bunker was part of the Atlantic Wall fortifications built by Nazi Germany along the Norwegian coast to defend against potential Allied naval attacks. The designation 'OB' stands for 'Offene Bauweise' (open construction), indicating this was likely an open gun emplacement rather than a fully enclosed casemate.
These 10.5cm gun positions were strategically placed to provide coastal defense and control of maritime approaches during the German occupation of Norway from 1940-1945.