Public domain photos

The image shows a group of people wearing blue uniforms and gas masks standing in a room with a wall in the background. On the wall there is a board with something written on it, and to the right side of the image there are a few objects.

The image shows a group of people wearing blue uniforms and gas masks standing in a room with a wall in the background. On the wall there is a board with something written on it, and to the right side of the image there are a few objects.Open in library