The reason I say I have labelled it so is because the shape of the cap has a low profile. Also, in the regluations for the winter cap, it was to have a single button in front, as this one does. RAD shade of brown wool with factory machine sewn bevo RAD emblem in silver for officers on front. Also has factory applied silver webbed piping to crown, further denoting officer status. Interior is lined with a brown rayon and is size stamped "57" in red ink. Very lightly worn, if at all, but has 2 pinhead size or smaller moth nips to left rear side and 3 to very back. Other than that, near mint. Wether it's the M43 or the Winter cap, it's very scarce for officers.