Australia puts famous or historically significant Australian identities on its banknotes.
The original Australian paper Five Dollar note released between 1967 and 1991, had Sir Joseph Banks (Botanist) on the front, and Caroline Chisholm (Philanthropist) on the back.
The first and still current polymer Five Dollar note released between 1992 and 1997, and from 2002 onwards, had Queen Elizabeth II on the front, and a design showing the new and old Parliament Houses in Canberra, ACT on the back.
The second polymer Five Dollar note released as a Commemoration of Federation in 2001, had Sir Henry Parkes (politician) on the front, and Catherine Helen Spence (Writer and Suffragette) on the back.
There were no 1968 Australian Five Dollar notes printed.
The "palm" on the Australian Five Dollar note is a bunch of eucalyptus leaves, specifically a Scribbly Gum (Eucalytpus haemastroma).
Australia did not have its own currency in 1907. The Australian Five Pound note was first issued in 1914. The Australian Five Dollar note was first issued in 1967.
See the link below to the Reserve Bank of Australia for details of the current Australian Five Dollar note.
Prior to their withdrawal, the One Dollar note was the smallest Australian bank note in circulation. Currently, the Five Dollar is the smallest denomination bank note.
There is no deeply significant answer. All Australian banknotes are of a different colour to aid with visual distinction between denominations. Five Dollar note is purple Ten Dollar note is blue Twenty Dollar note is red Fifty Dollar note is gold One Hundred Dollar note is green
Have another look. The Queen is not on the Australian Ten Dollar note, only the polymer Five Dollar note issued since 1992. Prior to the issue of polymer notes, she appeared on the paper One Dollar note issued from 1966.
There is no deeply significant answer. All Australian banknotes are of a different colour to aid with visual distinction between denominations. Five Dollar note is purple Ten Dollar note is blue Twenty Dollar note is red Fifty Dollar note is gold One Hundred Dollar note is green
There is no bird on the Australian Ten Dollar note.
Both old and new Parliament Houses appear on the Australian polymer Five Dollar notes as a symbol of our democratic system of government.
If you refer to the text in the top left of the obverse of the current Five Dollar note, "FIVE DOLLARS" is written about fifty-five times in nine rows of teeny weeny microprinting.
There is no bird on the Australian Ten Dollar note.