They also have the normal light brown and darker brown buttons. The jacket has the eagle buttons. There are names and letters numbers inside of all pieces. Except the hat just has what looks like an inspection tag?
Looks like name "Brown"inside the pants, and the jacket has 2 sets of matching numbers, and initials. I see some other written or stamped, but somewhat faded.
Please zoom in on the photos. This wool set is heavy.