细节
cover 1873 (9 May) envelope ex the "Nicholson" to Melbourne bearing 1863-71 24c. tied by "B62" obliterator and showing despatch and arrival c.d.s. on reverse; 1875 (13 Apr.) envelope (faults) from Yokohama to Scotland bearing 1863-71 24c. cancelled "Y1" in blue and showing, on reverse, despatch, Hong Kong and arrival c.d.s.; 1885 (14 Aug.) mourning envelope from Shanghai to London bearing 1884 10c. tied by "S1" in black, showing despatch c.d.s. alongside with, on reverse, arrival c.d.s.