It features a poppy in the centre on a background of microtext, reading: "remembrance day" and "lest we forget".
[1] As Canada also has coloured circulating coins, Australia is now the second country to do so.
"WE ARE AUDACIOUS IN CONCEPT AND METICULOUS IN EXECUTION FIND CLARITY IN 7 WIDTH X 5 DEPTH" using Atbash cipher.
"BELONGING TO A GREAT TEAM STRIVING FOR EXCELLENCE WE MAKE A DIFFERENCE XOR HEX A5D75" encrypted with columnar transposition cipher.
"For 75 years the Australian Signals Directorate has brought together people with the skills, adaptability and imagination to operate in the slim area between the difficult and the impossible."