The coat of arms of the Commandant of Karljohansvern Fortress. The arms symbolize the Horten Naval Base founded in 1818, which was expanded with a naval shipyard in 1820. In 1854, King Oscar I named the base Carljohansvern Shipyard. The main Norwegian naval base was situated here from 1850 to 1968.
Own work based on: an image of the coat of arms of the Commandant of Karljohansvern Fortress.
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