Public domain photos

The image shows a piece of paper with a ruler next to it, and a stamp with text and color samples on the paper. The stamp appears to be a photo of a stamp, with the ruler providing a scale to measure the size of the stamp.

The image shows a piece of paper with a ruler next to it, and a stamp with text and color samples on the paper. The stamp appears to be a photo of a stamp, with the ruler providing a scale to measure the size of the stamp.Open in library