Quote:
I recall 1972 have some hub doubling that created DDOs in such a number that they aren't collectible. Is there other years that carry a doubling like the 1972?
My answer is many other years, to many for me to list at the moment. Maybe someone else has a list of all.
You mentioned 1972. I believe 1972 is from a Master Die Doubling. So it affected about half the working hubs, which trickled down too half the working dies created through the hierarchy seen below. The other half created do not show it.
Maybe wrong, but I believe the Philadelphia mint was making working dies for all three mints at the time and is why it shows half and half, pending how the dies were distributed to all three mints including proofs. Thanks, Doug.
I think coops image below illustrates the hierarchy better. Showing how one can be more common or less pending what level its created.
Image by coop.
http://goccf.com/t/262295
Edited by Halo1st
04/29/2017 12:59 pm