1911 Harrison Ordinary paper Perforation 15x14 3d. grey on lemon, S.G.M22(3),

marginal block of 4 from the upper left corner of the pane, fresh, unmounted original gum. Philatelic Expertising (Great Britain) Ltd. Certificate 1996. ONE OF THE FEW REMAINING BLOCKS OF THIS VERY RARE SHADE. A MAJOR RARITY OF THE EDWARDIAN REIGN.