As @paddyman98 said.
Different types of variations are being found quite bit in this area of the coin. Others here have been posting on these.
There is enough metal displacement to see in your pic to indicate PMD. So, this happened after it left the Mint and is not an error.
Possibly die deterioration or some plating issue. From the pic I do not see anything inside the "D" that indicates an RPM.
I see no reason why you could not return returns. Some of these may have been eyeballed and the recipient did not see it grading a 70 so returned....
They were probably returns and I would have been hesitant to have ordered at this point.
Looks like a pre die crack depression. The actual crack or chip would come later when the die became more worn out. At this point the die is...
I suspect the toning is just environmental and the coin was one side up for some time to get this. Maybe on a windowsill or vehicle dashboard. But...
Sorry, not seeing anything unusual here. Could you give us some clues aside from the toning?
This is nuts. And people wonder why some of us stopped collecting stamps and sports cards. Marketing gone haywire.
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