and showing, on reverse, fair "GIBRALTAR/SHIP LETTER" h.s. and double-arc d.s. (without code), both in blue. Photo" /> cover 1850 (30 June) XU5 to England, rated<I> "8"</I> and showing, on reverse, fair "GIBRALTAR/SHIP LETTER" h.s. and double-arc d.s. (without code), both in blue. Photo | Christie's