and showing two strikes of the small boxed "GPO*BEAR/MAR 1787" (HG4). A very scarce early item." /> cover Calcutta: 1787 (Mar.) entire (heavy filing crease) to Dacca endorsed<I> "Bearing Postage 6As"</I> and showing two strikes of the small boxed "GPO*BEAR/MAR 1787" (HG4). A very scarce early item. | Christie's