In 2013 to celebrate the Saltwater Crocodile, the Royal Australian Mint released a very Limited Issue Bindi $1 One Dollar Silver Proof Coin colourised by the Royal Australian Mint struck in fine .999 Silver weighing one ounce of pure Silver.
The reverse depicts the Saltwater Crocodile Bindi while the obverse design depicts Ian Rank Broadley's portrait of Her Majesty Queen Elizabeth II.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.