, showing oval "PAID SHIP LETTER/SYDNEY" d.s. in red and Crowned Mauritius G.P.O. d.s. An unusual destination" /> cover 1850 (19 Mar.) entire letter from Sydney to Mauritius, rated<I> "3"</I>, showing oval "PAID SHIP LETTER/SYDNEY" d.s. in red and Crowned Mauritius G.P.O. d.s. An unusual destination | Christie's