, unused without gum, from the foot of the sheet; fine and rare. B.P.A. Certificate (1985). S.G. 20, £3,000. Photo" /> unused ½ Anna on 2 annas, initialled<I> "A.D."</I>, unused without gum, from the foot of the sheet; fine and rare. B.P.A. Certificate (1985). S.G. 20, £3,000. Photo | Christie's