Public domain photos

The image shows a close up of a piece of paper with a lot of dirt on it, and in the center of the paper is a black and white photo of an oil slick. The oil slick is spread across the paper, creating a stark contrast between the two colors.

The image shows a close up of a piece of paper with a lot of dirt on it, and in the center of the paper is a black and white photo of an oil slick. The oil slick is spread across the paper, creating a stark contrast between the two colors.Open in library