Public domain photos

The image shows a black and white photo of a group of men working in a tunnel, with one of them holding an object in his hands. In the background, there are a few other people, machines, rods, and other objects.

The image shows a black and white photo of a group of men working in a tunnel, with one of them holding an object in his hands. In the background, there are a few other people, machines, rods, and other objects.Open in library