Royal Australian Mint - online puzzles

Online puzzle Royal Australian Mint
Royal Australian Mint
The Royal Australian Mint is the sole producer of all of Australia's circulating coins and is a Commonwealth Government entity operating within the portfolio of the Treasury. The Mint is situated in the Australian federal capital city of Canberra, in Denison St, in the suburb of Deakin. The Mint was opened in 1965 by Prince Philip, Duke of Edinburgh.
Before the opening of the Australian Mint, Australian coins were struck at the Sydney Mint, Melbourne Mint and Perth Mint. As such, the Royal Australian Mint was the first mint in Australia to be independent of the British Royal Mint, in the United Kingdom, which was a British government entity. (Of the three older Australian mints, only Perth Mint has remained; it was a subsidiary of the UK Royal Mint until 1970.)