I was looking at some of my 1939-D Jeffersons and noticed that one of my reverse of 1940's had some doubling on the obverse. My question is: Is there a designation for a 1939-D (Reverse of 1940 or Type I reverse) Doubled Die Obverse? I can't find anything on CONECA mentioning a DDO for the reverse of 1940. Anyone have any input? Pictures are attached below: I finally figured it out
What you are seeing is Master Die Doubling (MDD). It appears on almost all issues from 39 to 45, particularly in the ST of TRUST. Since it is so common, and is from the Master die rather than a working die, it does not carry any premium. Check out most war nickel obverses and you will see the same thing.
Thanks so much Jason. I had wondered about MDD. I had read on CONECA's website that the master die was used often for many years with the last two digits of the date being changed. Thanks again, Robert