This medallion cover features limited medallion and corresponding stamp from the Around Australia Flights: 100 Years stamp issue.

This year marks the centenary of the first two flights, by seaplane and landplane, around mainland Australia. The first began on 6 April 1924, when Wing Commander Stanley Goble and Flying Officer Ivor McIntyre set off from Point Cook, Victoria, in a single-engine, open-cockpit, Fairey IIID seaplane, A10-3. Travelling anti-clockwise, they battled poor weather and constant engine trouble. On 19 May, after 44 days and 13,600 kilometres, they alighted at St Kilda beach, Victoria, to a warm welcome from a 10,000-strong crowd. The second round-Australia trip, this time in a landplane, was conducted by the Civil Aviation Branch of the Department of Defence to inspect air routes and to test the long-distance efficiency of the De Havilland D.H.50 aircraft. The crew comprised expedition leader Lt Col HC Brinsmead, pilot Captain EJ Jones and mechanic RH Buchanan. They departed Point Cook on 7 August, travelling anti-clockwise around the continent for 12,324 kilometres and arrived back at Point Cook on 29 August.

Stamp and cover design: Andrew Hogg Design