Hi all!

Reading the forum topics I saw the one about the 1943 steel penny. It reminded me that I had one that I wasn't sure of. In the 2010 Krause Standard Catalog of World Coins 1901-2000, page 2134, it list a 1943
Lincoln Cent as having a "D" or a D/D RPM. Is this coin that I have considered a D/D RPM? What is a D/D RPM? Also can this coin be graded with the pictures provided?
Thank you for any help with this!

