Vintage Fashion Guild's Label Resource, but had no luck. Then I noticed another tag one the side that said "Field Brothers", again Google dutifly did it's job and I ended up on Jrank. According to the article this jacket is really interesting. In the 1970s Dior wanted to expand the Dior Monsieur line into America so they used Bergdorf Goodman and Marshall Field's in Chicago to do so. Effectively, the jacket is not only a well constructed jacket, but also a historical marker of Dior's expansion into the American market.
The label is included below, for your viewing pleasure.