correspondence, marked "Per P&O Str Via Marseille", bearing 8c. on 2a. yellow strip of three and a pair, all pre-cancelled by light firm's chop and clearly tied by "B/172" obliterators, showing unframed "PD" with, on reverse, "SINGAPORE/P.O." and various transit and arrival datestamps; some very minor creases also affect two of the adhesives. A very rare and fine franking. Photo" /> cover 1867 (22 Nov.) envelope ex the<I> "Rikli"</I> correspondence, marked<I> "Per P&O Str Via Marseille"</I>, bearing 8c. on 2a. yellow strip of three and a pair, all pre-cancelled by light firm's chop and clearly tied by "B/172" obliterators, showing unframed "PD" with, on reverse, "SINGAPORE/P.O." and various transit and arrival datestamps; some very minor creases also affect two of the adhesives. A very rare and fine franking. Photo | Christie's