Because there are tiny signs of wear, so it can't be UNC.... Britannia's head, lower part of the ribbon in Victoria's hair, one of the leaves in the wreath. It's bloody good, so perhaps it's a GEF, or if it could be put down to cabinet friction, perhaps AUNC. No doubt an American would call it AU58, or even MS60 Brown! Dare you to send it for slabbing!