Bottom line is, when it is NOT "Known" or in any of the ranges like noted by Chad and the RENE, ,,,,with out boxes, packaging of the "original" marked as such, or getting a 'letter of authenticity", I am very leary when stuff like that pops up ,,,,I KNOW all too well from over the years of being in the firearms business and running into fakes and even learning who some of the fakers are ( were, as a few of them are now dead) we had 3 gun shops over the years had every type ,font, and size of stamps with 4 different gunsmiths working with and for us, easy enough to do..you want "S" "D" and so on??hhmmm,,,,and we got to "see" few other things made up like nazi proof marks, luftwaffe, Navy, , swazticas, etc, its out there and they been used over and over again.,sad to see, learn, the length that some would go to, in their "chicanery" perpetrating FRAUD.....again I know this for a fact when I was on the board of directors for Ohio gun collectors, our committee threw out of the club, some members who did this kind of stuff and at the national level......sorry no names, just listen as they say and MEAN ,,,,,,"caveat emptor baby"