Australia’s first victory at sea during World War I.

Australian post released a set of 2 stamp commemorating its first victory at sea during World War I on 14th October 2014.

 

Australia’s first victory at sea during World War I was also the first engagement by a warship of the fledgling Royal Australian Navy. The Battle of Cocos took place on 9 November 1914 when the Australian light cruiser HMAS Sydney responded to an attack by the German light cruiser SMS Emden on a communications station at Direction Island in the Cocos (Keeling) Islands.

 

Centenary of the Australasian Antarctic Expedition

On 2nd August 2011, AAT / Australia Post released a set of 5 stamps which is the first in a four-year program of stamps celebrating the centenary of the Australasian Antarctic Expedition (AAE).These stamps can also be used from Australia.

The first expedition team left Hobart in December, 1911 under the command of Douglas Mawson and returned to Adelaide in February, 1914.After departing Hobart in the Aurora, captained by John King Davis, the expedition team landed t Macquarie Island where it established a radio camp. The party then continued its voyage to the Antarctic continent, arriving at Cape Denison, the main base of the expedition team and referred to as the birthplace of Australia’s Antarctic territory. Ownership of the territory was formally transferred to Australia in 1936.

Five stamps depicts as follows:
1. The SY Aurora carried the expedition to and from Hobart.
2. Captain John King Davis, Captain of the ship SY Aurora, and second-in-command of the expedition.
3. The SY Aurora on Antarctic voyage.
4. Landing at Macquarie Island.
5. Birdlife of Macquarie Island. 

Royal Australian Navy

To Mark the 100 years of Royal Australian Navy Australia Post released as set of 2 stamps on June 14, 2011.
 

The historic stamp features Seaman Frederick Mills, a biplane and the battle cruiser HMAS Australia (I), HMAS Australia's badge consisted of the Federation Star overlaid by a naval crown, and the motto Endeavour which recalled Lieutenant James Cook's ship - the first ever vessel to reach the east coast of Australia.

The modern stamp features a Seahawk helicopter, the HMAS Sydney (IV) and Able Seaman Rebecca Florance, Communication and Information Systems Specialist, in the Operations Room. HMAS Sydney is one of the Royal Australian Navy's four guided missile frigates. The Adelaide Class vessel was commissioned in January 1983, measures 138.1 metres in length and has a top speed of 30 knots.

The postmark is from the HMAS Cerberus post office.