I can try, but it may be sometime before I can look at them again. I've gotten a load of college homework that I have to do here. It's possible that I can get some pictures on this coming weekend. What with the fascination of the 17D?
One has the D mintmark on the obverse (765,400), other has the D minmark on the reverse (1,940,000). PCGS has a really low survival rate for the 1917-D obverse, especially in MS condition, here is a good link: http://www.pcgscoinfacts.com/Coin/Detail/6570?redir=t
I think I have pictures of every half dollar. I'll go through the pictures later and see if I can find it. It's not in MS condition though.