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File:Norway's Resistance Museum WW2 Akershus Fortress (Norges hjemmefrontmuseum Det dobbelte batteri og bindingsverkshuset Akershus festning) Oslo 2020-02-25 4258.jpg - Wikimedia Commons
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File:Norway's Resistance Museum WW2 Akershus Fortress (Norges hjemmefrontmuseum Det dobbelte batteri og bindingsverkshuset Akershus festning) Oslo 2020-02-25 4246.jpg - Wikimedia Commons
![OSLO, NORWAY 20150203: HRH Crown Princess Mette-Marit of Norway visits Batteriet (the Battery), a center run by the Church City Mission in Oslo. Photo: Berit Roald / NTB scanpix Stock Photo - Alamy OSLO, NORWAY 20150203: HRH Crown Princess Mette-Marit of Norway visits Batteriet (the Battery), a center run by the Church City Mission in Oslo. Photo: Berit Roald / NTB scanpix Stock Photo - Alamy](https://c8.alamy.com/comp/2KA6A5B/oslo-norway-20150203-hrh-crown-princess-mette-marit-of-norway-visits-batteriet-the-battery-a-center-run-by-the-church-city-mission-in-oslo-photo-berit-roald-ntb-scanpix-2KA6A5B.jpg)