cover 1873 (Sept.) envelope (complete with contents headed "On board S.S. Hoogly About 100 miles from Aden") to Ceylon, bearing 1866 4a. cancelled with "ADEN.STEAMER.POINT/124" duplex, the upper right corner with stamp torn away and replaced (sellotape stains), and 1901 envelope registered to Germany, bearing 2a. and 2½a. cancelled "B" in bars and showing unframed "ADEN/REG" d.s. on reverse