not a picture, but a cool video from coastal artillery "VARA". it's a cannon from WW2, a 380mm cannon and I bet you all know where that cannon come from and was original intended to be used as:
The text is in an oldish Norwegian. I can make a simple translation, but the video explains itself.
https://www.youtube.com/watch?v=ir7VIix ... efilmarkiv
The vide is from the Norwegian armed forces historical archive, they have recently started to load up videos from the archive