296a-S, 4c Chocolate and black, Center Inverted, Type E "Specimen" overprint, fresh colors, centered to bottom with large balanced margins the other sides, o.g., hinge remnant, tiny thin just below the hinge, a Fine example; approximately 203 examples of this error were released, of which an unknown quantity received the "Specimen" overprint, in any event an extremely scarce stamp, 2016 Philatelic Foundation certificate (Scott $11,500) (Image 2) (Image)

CV. Starting Price 3,500