Welcome to Coin Talk. Your photos are a little bright & blurry. It would be helpful if you could post clearer photos and a clear closeup of the date and mint mark area. There's multiple listings of DDO & DDR 1964 D Lincoln cents. Also Repunched mint marks. This site shows some of the Repunched mint marks: http://varietyvista.com/02b LC RPMs Vol 2/RPMs 1964D.htm I'm not saying you have anything but better photos help. Especially the date & mint mark area.