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Elizabeth II, state title, value
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The 1,000,000 dollar coin is a bullion coin originally unveiled by Australia's Perth Mint on October 27, 2011 upon Queen Elizabeth II's visit to the city. With a face value of one million dollars, it is the highest denominated Australian coin ever minted. It also succeeded Canada's 2007 1,000,000 dollar coin as the largest coin ever produced.
The coin is composed of .999 fine gold, weighs 1012 kilograms, measures 80 centimeters in diameter, and 12 centimeters in thickness. A portrait of Queen Elizabeth II, an image common on coins of the British Commonwealth, is engraved on the obverse. Directly underneath the queen is the signature (IRB) of Ian Rank-Broadley, the individual who designed the most recent effigy of Queen Elizabeth on all Commonwealth coins. Around the coin's circumference to the left of the queen is her name, "ELIZABETH II". To the right of her is a legend reading "AUSTRALIA", and below the queen is the coin's value (inscribed as "1000000 DOLLARS"). The reverse featured a depiction of a red kangaroo (Macropus rufus), one of Australia's native marsupials. The kangaroo is encircled by a border consisting of numerous triangles, and is accompanied within the border by an inscription reading "RED KANGAROO" and a "P" mint mark, indicating the coin was produced at the Perth Mint. The border is, in turn, surrounded by a legend reading "AUSTRALIA KANGAROO 1 TONNE 9999 GOLD" and the year (dated "2012", even though the coin was produced in 2011).
"When we first thought of the idea of making a one tonne coin, we thought it was impossible, but the idea intrigued us, and we carried on."
— Ed Harbuz — Listen (help • info)
Officials at the Perth Mint developed the idea of creating the coin to raise the profile of Australia's kangaroo bullion coin series. It was initially believed to be impossible to make a coin of its size, but regardless, the mint continued the project and eventually managed to get the coin approved as legal tender. Chief Executive Officer Ed Harbuz was tasked with supervising the coin's production. The designs were made using a computer software, and were then used to produce the coin's dies. Once the dies were cut, an enormous amount (over A$50,000,000) of liquid gold was poured into the mold. After the gold solidified, mint officials fixed any imperfections, gave the coin its reeded edge, and applied a matte finish to most of the coin, excluding the portrait of Queen Elizabeth on the obverse and the kangaroo on the reverse. Overall, the coin took eighteen months to craft. Only one example was made, and is currently on display at the Perth Mint.