envelope registered to Netherlands Indies, showing fine Labuan c.d.s., Singapore transit d.s. (4.11) and, on reverse, clear "NED IND-SINGAPORE" double-ring transit d.s. (4.11). A rare early Official cover. Photo" /> cover 1885 (31 Oct.)<I> "On Her Majesty's Service."</I> envelope registered to Netherlands Indies, showing fine Labuan c.d.s., Singapore transit d.s. (4.11) and, on reverse, clear "NED IND-SINGAPORE" double-ring transit d.s. (4.11). A rare early Official cover. Photo | Christie's