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.
Rotunda memorial plate Warsaw. en Memorial plate for victims of explosion of February th de Gedenktafel zu Ehren der Opfer der Explosion am Februar pl Tablica pamitkowa ku czci ofiar wybuchu lutego selfmade photograph Szczebrzeszynski Warsaw gas explosion Commemorative plaques in Warsaw
Page 2023 Free-images.com. All images are Public Domain