Thanks Phillip, interesting indeed. I've actually bought this without any document--researched the corrected number later. I hear you, I wondered why someone changed the number--but I doubt someone had a document for 160508 and a GPW1 for 150508, that would be a crazy coincidence... So I am leaning toward this having been incorrectly engraved and corrected at the mint, but could be corrected for another reason too. (like to match the award to the doc like you say :) )
George
George
