Effective ways of using sandpaper

I’m at the Museum of Native American History in Bentonville, AR and look what I ran into. One of my favorite things, a 3rd phase chief’s blanket. Its from around 1865 to 1875 and its a classic third phase broken down into the nine patterns - all ravelled bayeta. It’s just a beautiful design, beautiful piece of art. The museum has a show coming up called “Walk in Beauty,” which is starts on November 7th, and it goes to the end of the year. If you want to see what they’re going to have in the show