1957 2/- Blue, three blocks of 4 cancelled on each unit with FDI datestamp for Macquarie Island, Davis and Mawson, CTO without gum. BW AAT1, cat AU$120
1965 (26 Apr) use of Australian 2/5d registration envelope (BW RE42) addressed to Tattersalls in Melbourne, cancelled Cocos (Keeling) Islands cds, and with 'Cocos (Keeling) Islands/Indian Ocean' registration label. Opened two sides and with minor peripheral faults, however a scarce usage