Marking Paper 60" (also known as the pattern or dotted alphanumeric paper) is like plotter paper which has been printed with a grid of light blue numbers and/or letters and/or dots space done inch apart, which makes it easy to line up pattern pieces straight for tracing outlines. The paper is also thin enough to see through it and trace a pattern below it. It is often laid right on top of the fabric spread and cut right along with the fabric. It is too thin for most people to use for making master pattern pieces, as the edges are not rigid enough to trace around.