Public domain photos

The image shows an old black and white photo of a large machine inside of a building, with stairs, railings, poles, boards with text printed on them, pillars, rods, and other objects. The floor is visible at the bottom of the image.

The image shows an old black and white photo of a large machine inside of a building, with stairs, railings, poles, boards with text printed on them, pillars, rods, and other objects. The floor is visible at the bottom of the image.Open in library