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The Australian 20 cent coin was first introduced with decimalisation on 14 February 1966 when it replaced the pre-decimal Australian florin, to which it is equal in size and mass. The original common reverse design featuring a platypus by Stuart Devlin has not been changed since its introduction. The Royal Australian Mint also uses the twenty cent denomination to issue circulating commemorative coins such as this one. In 2001, Australia released a series of coins to commemorate the Centenary of Federation (100 years since the separate states federated and formed the Commonwealth of Australia). There were nine different designs for twenty cent coins which marked the occasion - one each for the six states (New South Wales, Queensland, South Australia, Tasmania, Victoria and Western Australia), the two territories (Australian Capital Territory and Northern Territory) and for Norfolk Island. These designs were the result of a national competition for primary and secondary school students to design a coin to represent their state or territory - the coins representing the vision and talent of Australia's youth. A parallel series was issued in the 50 Cents denomination. Coins issued in 2001 have now been in circulation for 24 years. | ||||||
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Buy Austrian Silver Philharmonics Online |
Variety | In mint sets | |
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Mintage | Issued: 54,280 (included in total) | |
Details | Brilliant Uncirculated coins in mint sets(minted during 2000/2001 financial year + minted 2001/2002): | |
Variety | Proof FDC | |
Images |
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Mintage | Issued: 28,910 (included in total) | |
Details | Proof coins in mint sets(minted during 2000/2001 financial year + minted 2001/2002): |
Source | Edition | About | Link | Notes |
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Royal Australian Mint | 2001, 2002 | Mint | link | |
Royal Australian Mint | 2001, 2002 | Mintage | link |
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Royal Mint |
Country | Australia |
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Currency | Australian Dollar |
Coin Type | Twenty Cents Circulating Commemorative |
Issued | 2001 |
Monarch | Queen Elizabeth II |
Effigy | Queen Elizabeth II - Fourth Portrait, by Ian Rank-Broadley |
Face Value | 20 (x Cent) |
Circulation Mintage | 2,300,000 (2.3 million) |
Total Mintage | 2,383,190 (2.4 million) |
Current | Yes |
Material | CuproNickel |
Designer | Jenifer Gray |
Technology | Milled (machine-made) |
Shape | Round |
Size | 28.6500 mm |
Thickness | 2.5200 mm |
Mass | 11.3000 g |
OCC ID | RDKL-MOMK-CGWO-NZBV |
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A Guide Book of United States Coins 2025 Redbook |
Image | Details |
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2001 20c CuNi Proof Centenary of Federation Queensland
Copyright: Downies Notes: Proof. Source |
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2001 20c CuNi Proof Centenary of Federation Queensland
Copyright: Downies Notes: Proof. Source |
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2001 20c CuNi Unc Centenary of Federation Queensland
Copyright: Downies Source |
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2001 20c CuNi Unc Centenary of Federation Queensland
Copyright: Downies Source |
Source | Reference ID |
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Krause, Standard Catalog of World Coins | Australia KM# 554 |