Australian mails; offers of Orient Steam Navigation Co. and P.& O. Co, 1879-11-28 Unit ID: 152/373 Date: 1879-11-28
Australian mails; postage on intermediate correspondence, 1883-02-24 Unit ID: 159/37-40 Date: 1883-02-24
Australian mails; proposals for regular steam route via Cape of Good Hope, 1846-1849 Unit ID: 51/Pkt.1905Z/1849 Date: 1846/1849
Australian mails to be conveyed in wooden boxes rather than bags, 1853-02-15 Unit ID: 77/18-21 Date: 1853-02-15