This is a rare original 1964 ½ windshield header, part number C5ZZ-7603806-A. I bought it about 1977 and have stored since.  Mirror attaches to it. Paint to your interior color. I am assuming it also fits the 65 and 66 – please check yourself. Time to clean out unused parts.

 Winner pays $20.00 S&H in the cont. U.S.A. No APO or FPO Boxes at this time