For another similar mackinaw, be sure to go back and check out the Carter and Churchill I posted a couple of months back: http://vintageleatherjackets.blogspot.com/2013/08/carter-churchill-co-lebanon-nh.html
This vintage coat was made in the late 1920s through early 1930s by the F.A. Patrick woolen mills of Duluth, Minnesota. It is made of red and black point blanket material. While nearly identical in weight, feel and point design to the point blankets made by the Hudson's Bay Company, the material in this coat was made in-house in one of Patrick's woolen mills. Patrick was renowned for their high quality blankets and woolen fabric. The coat has classic double breasted styling, with a button-on belt. As was typical on mackinaws of the 1910s-1930s, the coat is unlined, relying on the quality and weight of the wool for insulation. Patrick did an excellent job with marketing- their coats were the official uniforms of the White Sox, the NY Giants, the Chicago Cubs, the Duluth Eskimos (Later the Washington Redskins) among others. This is the same model, though in a different point blanket color combination, as worn by the Eskimos in the late 1920s.