URL：https://upload.wikimedia.org/wikipedia/commons/thumb/a/af/Vickers_machine_gun_in_the_Battle_of_Passchendaele_-_September_1917.jpg/300px-Vickers_machine_gun_in_the_Battle_of_Passchendaele_-_September_1917.jpg
掲載元：https://sv.wikipedia.org/wiki/Vickerskulspruta
