This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Felix Schwormstadt Illustrierte Zeitung . in the picture Creator Felix Schwormstdt PDold Felix Schwormstdt Submarine control rooms Naval submarines in art World War submarines of Germany World War I
Page 2023 Free-images.com. All images are Public Domain