@Sudz, Thank you for the reverse pic.
To me, the weak "ERTY" of LIBERTY and the obliterated "D" of GOD, combined with the strong reverse strike, would suggest that the lamination peeled after the strike.
I'll ask a rhetorical question I've asked for decades: how could an error that obvious roam the channels of commerce for so long without being noticed? (It's found a good home now, though!)
Thanks for sharing this one. It's definitely an eye-catcher.