Love the find. Too bad I am having difficulties "spotting" the varieties. Well, as they say, patience; a few reference coins; and a good book with clear photos.
Cherrypicker would list as a FS-01-1961 D-501 a RPM; and apparently, with a mintage of 1.7 Billion 1961D cents, its not rare. However, Good find and a feather in your cap.
Weee hoooo!!!! After what seems like looking at 1.7 billion cents I found a Rpm???@@@@ See, you can learn on this site; volumes.. Thanks
The best part about this, for me, is I could easily go buy one in any grade I want. The part that makes it worth it is finding one, posting for others to view and learning. Full coin pic to follow..