Public domain photos

The image shows a black and white photo of a large metal pipe in a factory, with a wall on the right side and a floor at the bottom. In the center of the image, there are several metal pipes connected to each other, with wheels and other objects attached to them.

The image shows a black and white photo of a large metal pipe in a factory, with a wall on the right side and a floor at the bottom. In the center of the image, there are several metal pipes connected to each other, with wheels and other objects attached to them.Open in library