Not sure what you are looking at, the bump east of the ear is a normal part of the design.
If you see doubling on the motto it might be strike doubling but try getting a closer pic and since most 2006 DDOs show on LIBERTY try getting that area.
There's a ton af different 2006 DDOs...
The one with a doubled ear:
Nice one:
even some similar ones for 2007 but a lot less of them: