Vintage L.L. Bean sleeveless dress/jumper

Worn many many times with lots of life still left in it. 100% cotton pop over dress. Bust darts from waist. Buttons on side can be unbuttoned, but do not have to be in order to wear this dress. In the fall and winter I have worn a crewneck long sleeve top underneath to extend its wear. women’s petite size 20. I am not a petite as I am 5’5” tall, but the dress fits well. Back length is 45.5”. Two pictures with pointed fingers show a small, dark stain and a thread pull. I would wear this until the fabric disintegrated, but I lost a lot of weight and can no longer wear this dress. Smoke-free home.