Furst of a Kind Khaki Cotton Jacket

Furst of a Kind cotton jacket. Missing size, best guess is a size xs - extra small. I included several photos of one of the cuffs to show a few very small and very faint stains. 100% cotton. Measurement of underarm to underarm seam on the back of the jacket is nearly 17.5". Length from shoulder to hem on the front is approx. 20.5". Underarm seam to cuff is 18".