Public domain photos

The image shows a black and white drawing of a group of people wearing helmets, with a scale on the left side of the image. The people in the drawing appear to be working in a factory, with various tools and equipment scattered around them.

The image shows a black and white drawing of a group of people wearing helmets, with a scale on the left side of the image. The people in the drawing appear to be working in a factory, with various tools and equipment scattered around them.Open in library