Description:

AUSTRALIAN: 1948 Operation Sinbad flight, 1949 & 1950 HMAS 'Labuan' covers x4 different, 1965 postcard with 'SOUTH INDIAN OCEAN EXPEDITION/[Penguin]/HEARD ISLAND' cachet signed by the ten expedition members, 1967 'MERCY VOYAGE TO MACQUARIE ISLAND' cachet on cover with 'COXSWAIN/HMAS PERTH' d/s alongside, 1973 MS 'Nella Dan' cover signed by captain with 'RADIO OFFICE/MACQUARIE IS' & ship cachets, etc, also Ross Dependency including 'GEOGRAPHICAL LABORATORY/SCOTT BASE' cachet signed by ten team-members, USA with 1934 Byrd Expedition Aerial Survey cover to Australia with '…DELAYED FOR ONE YEAR...' cachet, plus apparently commercial cover to UK with Tristan Da Cunha QEII 3d tied 'GOUGH ISLAND/SOUTH ATLANTIC' cds and 'SCIENTIFIC SURVEY' cachet in violet, generally fine. (73)