cover 1895 (29 Nov.) envelope to Aden? bearing, on reverse, 1882-88 ½a. tied by "B" in bars and showing "ZAILA" c.d.s. alongside overstruck by Aden Camp c.d.s. (3.12) plus Aden d.s. (3.12); the envelope a little ragged at right where opened. Rare. Photo