Being new to the hobby, I have only a 1 in 10 record for spotting actual errors. I have exhausted my sources on this one (maybe I missed a footnote), so I have to ask: The coin in question is a very ugly 2005-S Kennedy Proof, which I understand should be .900 silver coin with no core. I am seeing a definite core in this coin, but the odds are telling me that I have missed something important. Any input is appreciated.