I don't have my CherryPicker's Guide with me but since it is not listed with Coneca, none have been submitted yet! That doesn't mean that they do not exist and you may have found the first one. It is quite possible that the Denver Mint ran out of Dies and received one from the San Francisco Mint with the "S" Mintmark already punched in it and had to punch a "D" over the "S". Mike Diamond may know the answer to that or you can email Bill Fivaz by going to Coneca's Website, as he may know. Good Luck...Frank
CherryPicker's Guide? Is there such a thing? Maybe that's what I need. I've been looking at coins but don't have anything to assist me in it.