STATE KERTER ERROR QUESTION??

I have a 2003-P Illinois quarter pulled from a new roll that looks like it was coated in graphite or charcoal. It is gray-black in appearance. Wonder if it might be a sintered planchet. Would these have any collector value?
theknowitalltroll;
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<< <i>No one actually collects those, do they? >>
I spose a few do. I was going thru a roll helping out friends who wanted them and I stumbled across that one. I misplaced it about 6 years ago and just found it again yesterday.
It will be a very narrow market though.
The name is LEE!