http://www.ebay.com/itm/281559063886
This vintage coat was made in the 1930s by Jack Frost outerwear. It is made of red black and gray plaid mackinaw wool. The coat is double breasted, with handwarmers and flapped cargo pockets. It has a pleated, belted back. As is typical of these early production mackinaws, the coat is heavy-weight and unlined.

Chest (pit to pit): 24″ (doubled = 48″)
Shoulder to shoulder: 19″
Sleeve (shoulder to cuff): 24-1/2″
Length (base of collar to hem): 30-1/2″