Great find at the thrift store. I have about 800 feedsacks and about 100 flour sacks. The flour sacks are smaller and of finer woven fabric. The holes will not wash out, nor will they close up. The holes are how you can tell they are real feedsacks. The last bunch of sacks (125) I got were so dirty and stained that I washed one with the towels with bleach. The color was so much brigher that I went back and wash all most all of rest with hot water and bleach. I make quilts, wall hanging and I've started making Olivia some dresses with the feed sacks. I have some of the same ones you have. I have the 3rd, 5th, 7th and the bottom one. Some of the sacks I only have one, and some sacks I have as many as 7 alike. They are fun to collect and use. I have a few I've been thinking of selling on this board.