I think what we are seeing on the date is a trick of the light. I am not seeing any doubling in LIBERTY, and I would expect to see some if there was hub doubling in the date. Keep up the hunt!
If it is not doubled, it would go against everything I have learned about doubling...and that is look for the separation lines. Would this be a class IV?
I can see what you are seeing, but the issue is that there is a light reflection/glare effect right where I would expect there to be notching/separation. It may require additional photos. And as I said before, if this were indeed a doubled die, it would show on areas besides the date. And I am not seeing it anywhere else.
Non Cents, I think you should change your motto from " Keep up the hunt !" to "Killing Dreams Since 2011"