Frank's Cape (Research Pt 2)

In trying to study more details of Frank's cape, I can't find evidence of a center back seam.  What I do see are some raglan seams on the front and back of both shoulders.  This would make it a 5 (or 7) piece cape instead of a 4-piece. But here are some screen caps of where I think I'm seeing the seams-

Simplicity's 2499 has a 7-piece cape with the raglan seams.  All you would need to do is widen the center back piece to have enough to pleat into the collar.