@athens, it looks like some split plate doubling as well as the two die cracks emanating from the corners of the Lincoln Memorial. If there is additional doubling (I notice that you included a pic of the letter Y in LIBERTY), then it is too subtle for me to see. I'm sure that other folks will weigh in on this aspect of your coin though.
"If you climb a good tree, you get a push." -----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz
But there is a reason these devices are thinner. The die is aging quickly. The die was over polished and used for a time and now the devices are showing more die wear. Not a doubled die or an error. Just showing a die event that the die is now in the walker stage of life and headed towards retirement.