on "POSTAGE" 8c. green, unused without gum; light crease at right (not apparent on face) and two natural paer inclusions at foot. A good example of this major rarity. B.P.A. Certificate (1981). S.G. 54, £7000. Photo" /> unused 1891-92<I> "6/cents."</I> on "POSTAGE" 8c. green, unused without gum; light crease at right (not apparent on face) and two natural paer inclusions at foot. A good example of this major rarity. B.P.A. Certificate (1981). S.G. 54, £7000. Photo | Christie's