Public domain photos

The image shows a black and white photo of four pressure gauges on a white surface. The gauges are arranged in a neat row and appear to be made of metal. The background is a plain white wall, providing a stark contrast to the gauges.

The image shows a black and white photo of four pressure gauges on a white surface. The gauges are arranged in a neat row and appear to be made of metal. The background is a plain white wall, providing a stark contrast to the gauges.Open in library