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The Platinum Koala is an Australian platinum bullion coin minted by the Perth Mint〔 (【引用サイトリンク】 Welcome to the Platinum Coins ) 〕 and is the most famous series of platinum coins of Australia. The Platinum Koala is notionally legal tender, that is a legal means of payment (in Australia).〔 On 18 June 1987, the Australian Government approved the minting of platinum and silver coins. This decision was made based on the success of gold coins issued a year earlier. The minting of the coin began in September 1988 in Perth and in 1989 the Platinum Koala arguably became the world’s "largest selling and first international tradeable investment coin".〔(Michael Tracey )〕 For marketing purposes, 2 ounce, 10 ounce and 1 kilogram coins of silver, gold and platinum were introduced in 1991; the 1 kg coins were the world's heaviest bullion coins at the time.〔(【引用サイトリンク】Perth Mint Coins )〕 Together with the American Platinum Eagle, the Platinum Koala is one of the very few series of platinum coins which are still being produced. Minting of 1/10 and 1/2 oz 2010 coins has been announced and will not exceed 2,500 and 1000 pieces, respectively. However, it will be enriched with the new 1/10 and 1/2 oz animal-related platinum coins depicting platypus, frill-necked lizard, saltwater crocodile, wombat, echidna, brolga, dolphin and kangaroo. All these coins have coloured backgrounds.〔 The obverse depicts the Queen of Australia, Elizabeth II, and the reverse contains an image of a koala.〔 (【引用サイトリンク】 title =1990 Twentieth Ounce Platinum $5 Koala on Tree Trunk ) 〕 The initials JB of the reverse face designer James Brown are present on most coins. Other designers of the coin include Raphael Maklouf (1990, 1991, 1996, 1998),〔〔〔 Miranda Cornell (1998)〔 and Darryl Bellotti (2010).〔 The annual series contain coins weighing from 1/20 ounce to 1 kilogram.〔(【引用サイトリンク】title=Australian Koalas )〕 The Platinum Koala never reached the popularity of the American Platinum Eagle, mostly because it has not been advertised in the US.〔(【引用サイトリンク】Australian Platinum Koalas Bullion Coins )〕 Like most investment platinum coins, Platinum Koalas are sealed in a protective plastic case. The coins are sold at prices that reflect the current price of platinum, and not at the face value printed on the coin. Since November 1986, Perth Mint has used more than 18 tonnes of platinum for minting. About 85% of them were sold abroad making the Gold Corporation (owner of the Mint) one of Australia's top 30 export earners.〔(【引用サイトリンク】The Perth Mint )〕 ==See also== *American Platinum Eagle *Platinum as an investment *Canadian Platinum Maple Leaf *Platinum Panda 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Platinum Koala」の詳細全文を読む スポンサード リンク
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