I don't see anything but it's hard to tell from your pics The best thing to do is go to www.doubleddie.com and look up the doubled dies for 1964-D. See if you can find an EXACT match. While you're there, look at the tab called worthless doubling. It explains Die deterioration and machine doubling. There are lots of these in circulation and many new collectors confuse these for true doubled dies. It's a good site to bookmark