Public domain photos

The image shows a black and white photo of a room filled with lots of pipes and valves, as well as meters and a light on the ceiling. It appears to be a boiler room, with the pipes and meters likely used to control the flow of water.

The image shows a black and white photo of a room filled with lots of pipes and valves, as well as meters and a light on the ceiling. It appears to be a boiler room, with the pipes and meters likely used to control the flow of water.Open in library