Public domain photos

The image shows two men in military uniforms working on a machine, with one of them holding an object in his hand. In the background, there are pipes and other objects, suggesting that the men are part of a defense system.

The image shows two men in military uniforms working on a machine, with one of them holding an object in his hand. In the background, there are pipes and other objects, suggesting that the men are part of a defense system.Open in library