Public domain photos

The image shows a black and white photo of a large room filled with lots of pipes, rods, boards with text printed on them, rocks, and other objects. At the top of the image, there is a ceiling with rods.

The image shows a black and white photo of a large room filled with lots of pipes, rods, boards with text printed on them, rocks, and other objects. At the top of the image, there is a ceiling with rods.Open in library