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.
Keywords from Image Description:
Verhalten bei Angriffen feindlicher Flieger Kundmachung Laibach Mehrsprachiges Plakat . Verhalten bei Angriffen feindlicher Flieger Kundmachung Laibach Mehrsprachiges Plakat bildarchivaustria at aspx piBildID Theodor Freiherr Schwarz von Karsten PDold posters of Ljubljana Posters in the Austrian National Library