Also see:
Canada Goose shawl mackinaw
White collared mackinaw
Brown collared mackinaw

http://www.ebay.com/itm/281070487250

This vintage coat is a classic workwear style, the shawl collar mackinaw. It has a canvas shell, with zipped breast pockets, cargo pockets, and leather buttons. The buttons are particularly unusual, as they are square as opposed to the usual round ones. The breast pocket zippers are Astro brand. The coat has a zip in shearling liner. Lining zips are also Astro brand, larger than the pocket zips. The coat was made by Zecron International – world wide weatherproof.

Chest (pit to pit): 25″
Shoulder to Shoulder: 24″
Shoulder to Cuff: 19″