Australian Money By sngo422 Jan 1, 1905 Private bank notes continued to circulate as a paper currency Period: Jan 1, 1905 to Jan 1, 2001 Australian Money Jan 1, 1910 The Australian Notes Act 1910 is passed vesting authority to issue Australian notes in the Treasury Jan 1, 1923 The 'Harrison series' of currency notes is issued Jan 1, 1933 The 'Ash series' of notes is issued Jan 1, 1953 The 1953/54 series of currency notes is issued Jan 1, 1966 Australia converts from pounds, shillings and pence to decimal currency. Jan 1, 1973 A $50 decimal currency note is issued. Jan 1, 1984 The decision to replace the $1 note by a $1 coin is announced with the new coin issued in 1984 Jan 1, 1992 The first of a complete series of 'Polymer' currency notes Jan 1, 1996 A $100 polymer note is issued, completing the first series of polymer notes.