http://www.ebay.com/itm/281262510170
This vintage jacket was made in the 1970s or 1980s. It closely follows the pattern of Hudson’s Bay point blanket jackets of the time, with its shirt style collar and buttoned patch pockets. However, I don’t believe the Hudson’s Bay Company ever produced their jackets in this period with a gray background. I have seen this pattern of fabric made by Woolrich and by Pendleton, so possibly it’s one of theirs.

Chest (pit to pit): 23″ (doubled = 46″)
Shoulder to shoulder: 20″
Sleeve (shoulder to cuff): 21″
Length (Base of collar to hem): 29″