"The Worlds Largest Coin Which Is Legal Tender, Nominal Value Is $1 Million Aud"
"It weighs 1 tonne (1012kg/2231lb) and is made from 99.99% pure gold valued at $53.5 million at the time of minting in 2012. It currently resides at the Perth mint in Australia."
#25 - In the Southern hemisphere it is the Aurora Australis!
#41 - Not an Australian currency note!
At this time, Australia has reciprocal agreements with the following countries:
Belgium
Finland
Italy
Malta
the Netherlands
New Zealand
Norway
the Republic of Ireland
Slovenia
Sweden
the United Kingdom.