Burberry 100% wool trench coat

100% Authentic, olive green, has buckled, a couple of which are showing metal damage. Single stain displayed in 3rd photo all labels inside are present, but I am still unable to find a size. My best guess is a men's L possibly XL Model is 5’9” and weighs range approximately between 155 lbs -165 lbs. Here he is round 158 lbs