I have not seen any reproductions that have the flange at the bottom. If you must have that one you will have to find originals. It's not that the repos are wrong, it's just that they are made for a different spec 39. They are open at the bottom to allow light to get to the reflector for the ad glass. Since yours has a flange, I'm guessing your 39 does not have the ad glass. If you buy a repro, you won't see the difference when it's installed because the door will cover the open area at the bottom.