http://www.ebay.com/itm/281560066554
This vintage coat is a 1930s railroad mackinaw. It is double breasted, with a shawl collar, belted back, handwarmer pockets and cargo pockets. Because this is a workwear coat, subject to abuse, this style had additional leather reinforcement at the pockets, sleeve bottom and cuffs. As was typical of these early production mackinaw coats, this one is unlined, with taped seams. While the shawl collar mackinaw style goes back to the 1910s, the leather reinforced railroad version didn’t gain popularity until the 1920s. By the early 1940s, production was waning, though old coats of this style continued to be be worn for years, a testament to their durability and warmth.

Chest (pit to pit): 26-1/2″ (doubled = 53″)
Shoulder to shoulder: 22-1/2″
Sleeve (shoulder to cuff): 25″
Length (base of collar to hem): 36″