Public domain photos

The image shows two pieces of paper with text and numbers written on them, as well as a ruler next to them. The text on the paper appears to be a scale, and the ruler is likely used to measure the measurements of the paper.

The image shows two pieces of paper with text and numbers written on them, as well as a ruler next to them. The text on the paper appears to be a scale, and the ruler is likely used to measure the measurements of the paper.Open in library