Public domain photos

The image shows a black and white photo of a man standing next to a wooden box containing a machine, which appears to be a synchronous converter. The man's legs are visible at the top of the image, and there are other objects in the background.

The image shows a black and white photo of a man standing next to a wooden box containing a machine, which appears to be a synchronous converter. The man's legs are visible at the top of the image, and there are other objects in the background.Open in library