Pic. #9 is very clear if you click the supersize ,...it has serious delamination,..a tare that goes the length of three lugs on top of the photo,..and delamination that runs the same three lugs under that !!
It looks like heat damage, like it sat next to a radiator or heater for a period of time !!
WAY TOO MUCH for a drum that needs repairs that can`t be hidden.
I`ll bet that thing has a loud buzz going on !!