Nope. At least not on a 63-64 polara. Mine has all original trim. But that said, it might be on a high end package but I’ve never seen one with trim there. The hood covers over the wiper cowl.
It is flat on the front, has no raised sections, and has nowhere for the headlight bezel to connect............why I am thinking not a Polara grill?? I don't know though.