correspondence to Cadiz care of Mr. Power at Gibraltar, bearing 1a. brown pair and single, 4a. black and 8a. carmine on blue glazed paper, all cancelled "B/172", showing red crayon "1/10", Gibraltar transit c.d.s. (13.9) in blue and, on reverse, "SINGAPORE/P.O." c.d.s. in red. A rare and attractive franking illustrating the 15a. rate effective 24 July 1858. Photo" /> cover 1859 (27 July) entire letter ex the<I> "Matia"</I> correspondence to Cadiz care of Mr. Power at Gibraltar, bearing 1a. brown pair and single, 4a. black and 8a. carmine on blue glazed paper, all cancelled "B/172", showing red crayon<I> "1/10"</I>, Gibraltar transit c.d.s. (13.9) in blue and, on reverse, "SINGAPORE/P.O." c.d.s. in red. A rare and attractive franking illustrating the 15a. rate effective 24 July 1858. Photo | Christie's