, bearing 1855 4a. black on blue glazed paper pair and two singles, one bisected diagonally, clearly tied by "B/172" obliterator and showing, on reverse, "SINGAPORE/P.O." c.d.s. in red and arrival d.s. (11.11). A rare and attractive franking of exhibition quality. R.P.S. Certificate (1981). Photo" /> cover 1859 (Oct.) entire from Singapore to Glasgow, marked<I> "Via Marseilles"</I>, bearing 1855 4a. black on blue glazed paper pair and two singles, one bisected diagonally, clearly tied by "B/172" obliterator and showing, on reverse, "SINGAPORE/P.O." c.d.s. in red and arrival d.s. (11.11). A rare and attractive franking of exhibition quality. R.P.S. Certificate (1981). Photo | Christie's