http://www.ebay.com/itm/271772745793
This vintage mackinaw coat was made in the early 1940s for Sears under its Hercules label. It is wool plaid in a double breasted cut, with handwarmer pockets and flapped cargo pockets. It has a plaid lining, a feature Sears introduced in its mackinaws around 1941. By the post-war period, many mackinaws sold by Sears had switched over to a quilted lining, and the design of the Hercules label had changed.

Chest (pit to pit): 26″ (doubled = 52″)
Shoulder to shoulder: 21″
Sleeve (shoulder to cuff): 24″
Length (Base of collar to hem): 31″