14 February 1975
Graphic of the Companion of the Order of Australia. The Order of Australia was established on 14 February 1975 by Her Majesty Queen Elizabeth II on the advice of the Whitlam Government. The design of the Companion of the Order of Australia is a badge with a gold insignia of the Order in the centre. The central insignia is circled with blue enamel edged in gold with citrines and is inscribed with the word ‘Australia’ in gold capital letters. The circle also contains two gold sprigs of mimosa. The insignia is ensigned with the Crown of St Edward in full colour. The medal is hung from the ribbon of the Order. It is royal blue with a central band of mimosa blossoms.