In 2013 the Perth Mint released a special Limited Issue The Land Down Under Sydney Opera House $1 One Dollar Silver Proof Coin struck in fine .999 Silver weighing one ounce of pure Silver.
The reverse designed by Natasha Muhl depicts the Sydney Opera House while the obverse design features 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.