Does any one have any information about this American coin apart from the fact that it is an extremely rare overdate?
I can't offer a lot of info, but I will relate what I have read. The 1916 Doubled Die Obverse nickel is a relatively recent discovery, unknown to collectors until the last few decades. This variety was first published in the July 1962 issue of The Numismatic Scrapbook magazine, with the variety not gaining widespread popularity until a decade later. In 1978, the 1916 DDO nickel made it's first appearance in the Guide Book, forever popularizing the variety among a much larger segment of the hobby. For any variety, inclusion in the annual "Redbook" is most important, as this reference serves as a kind of checklist for so many collectors. Today, with it's additional inclusion on the PCGS and NGC Set Registry programs, demand has reached extremely high levels. Some references estimate the number of uncirculated examples to be no more than 10 or 12 pieces, with about twice that many in AU grade. Circulated examples are estimated to number in the 100-150 range. The 1916 DDO nickel (FS-016, Breen-2599) exhibits strong hub-doubling on the date, chin, throat, feathers and the tie on the braids.
The reason why I have heard about this coin,as it occasionally turns up in the numismatic community over here in New Zealand.I know of at least 1 dealer who has had at least 1 piece.