Public domain photos

The image shows a close up of a large metal gear wheel in a building, with a wall on the left side, a door in the background, and a floor at the bottom. The gear wheel is connected to a metal rod with a chain, and there are a few other objects scattered around it.

The image shows a close up of a large metal gear wheel in a building, with a wall on the left side, a door in the background, and a floor at the bottom. The gear wheel is connected to a metal rod with a chain, and there are a few other objects scattered around it.Open in library