Mathpark1981

Hello all, I am curious about a nickel I found at a gas station I worked at in 2004. I sent it in to NGC for grading and it came back ms65 improperly annealed planchet. Now after many many years and lots of reading I understand what an improperly annealed planchet is and how it came to be the error that it is. I have become fascinated with "black beautys" as they are called. But one thing that I have never come across is another 2004 D keelboat nickel as ALL of the specimens that I can find are minted in Philadelphia. So I am curious as to know if I can find out how many of these nickels are known and the value of it? Surely mine cant be the ONLY one but it would certainly be pretty cool with me if it is. Any information would be appreciated.