71RTSEWagon-Conv, looking at your fender tag, it does have the A46 molding package which included moldings normally found on SEs, but it was available on regular Challengers as well.
It does not have the A47 code for the Formal roof package though, so the car originally would not have had the small rear window.
Based on that I bet the door emblems were added to the car somewhere along the line?
Barry