http://www.ebay.com/itm/281406909215
This vintage coat was made in the 1920s. It is a shawl collared mackinaw style, with a sheepskin collar. The coat is belted with an early style buttoned belt. It has handwarmer pockets on the chest and flapped cargo pockets on the hips. The coat is leather-lined in the body and sleeves for windproofing. Prior to the adoption of leather as a common exterior material for coats in the 1920s, it was popular as a lining material for outdoorsy garments like this one.

Chest (pit to pit): 23″ (doubled = 46″)
Shoulder to shoulder: 20″
Sleeve (shoulder to cuff): 26″
Length (base of collar to hem): 43″