This vintage coat was made by Lakeland. It is a 1920s- 1930s mackinaw style, with a shawl collar, buttoned patch pockets and a waist belt. This style was popularized in the 1910s by the Patrick mackinaw company of Duluth. They had a second boom in the 1920s-1930s as workwear, especially with railroad men. The simpler styling and navy blue wool of this one is more consistent with the 1920s-1930s ones.
It was designed by Jeffrey Banks in the late 1970s, and is a very good reproduction. Comparing it to originals in my collection from the era, it’s very close in terms of styling and cut. The interior of the coat is the real giveaway. While most of the originals were unlined, this has a luxurious quilted liner.
Chest (pit to pit): 24″ (doubled = 48″)
Shoulder to shoulder: 19″
Sleeve (shoulder to cuff): 24-1/2″