It has been verified by a couple of other NJ knowledgeable individuals, so a 1787 Maris 71-y Plaited Mane variety it is. Big congratulations! Rarity 6 or 6+ in the NJ world is much much harder to come by than any CT copper in that range for some reason, so I was very happy to see this find. According to "the book" on NJ Coppers, estimated survivial rate of a 71-y is 17-32, not known remaining a calculated survival rate...thus the rarity of 6 or 6+..... This is the only 1787 Maris 71-y in my survey of over 700 ground founds.... Don