http://www.ebay.com/itm/281472908007
This vintage jacket was made by Brill Bros under the Mil-J-7823E G-1 contract. It is made of brown goatskin leather, with a brown mouton collar and knit cuffs. The wind flap is stamped USN and the jacket does up with a Scovill zip.

Chest (pit to pit): 22″
Shoulder to shoulder: 18″
Sleeve (shoulder to cuff): 25″
Length (base of collar to hem): 25″