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Detailed information about coin type: Twenty Cents from Australia:

Coin type: Twenty Cents
Description

The 20 cent coin was first introduced with decimalisation on 14 February 1966. The original reverse design remained unchanged until 1995. This denomination has since been used infrequently for commemorative designs.

All of the first issue of 20 cent coins in 1966 was produced at the Royal Mint, London. The Royal Australian Mint did not commence 20 cent coin production until the next financial year. Quantities of 20 cents have also been struck by the Royal Mint, Llantrisant and the Royal Canadian Mint.

CountryAustralia CurrencyAustralian Dollar
Sub-type of Sub-types Twenty Cents Platypus
Twenty Cents Circulating Commemorative
Face value20 (x Cent)
Years produced1966 - ? CurrentYes
MaterialCuproNickel Designer
Production technologyMilled (machine-made) ShapeRound
Size (mm)28.6500 Thickness (mm)2.5200
Mass (g)11.3000
Obverse

Australian decimal coins have carried four portraits of Her Majesty Queen Elizabeth the Second.

The inclusion of an effigy of the Queen on the obverse of Australia's coinage is mandated by Regulation 4 (c) of the Currency Regulations made under the Currency Act 1965. Portraits of Her Majesty have all faced to the right in line with a convention, said to have commenced with Charles II (1660-1685), that the new Monarch's portrait would face in a direction opposite to that of their predecessor.

Obverse inscription

Legend of the ruling monarch

Reverse

A platypus swimming. The denomination numeral 20 [cents] is above the head of the mammal and the artist's initials SD are within the swirl of water around its right forepaw.

Reverse inscription

20

EdgeMilled Edge inscription

None

Notes

If you keep your coins in 2x2 cardboard holders, the best size for twenty cent coins is 30mm.

Twenty Cents: Photos

Specimen Coin - 20 Cents, Australia, 1966
Copyright: Museum Victoria / CC BY
Author:
source

Specimen Coin - 20 Cents, Australia, 1966
Copyright: Museum Victoria / CC BY
Author:
source
List of 70 coins of type: Twenty Cents from Australia
NameMintageReignEffigyLegend
Twenty Cents 1966 58,241,110 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1967 83,848,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1968 40,537,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1969 16,514,999 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1970 23,286,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1971 8,957,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1972 16,653,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1973 23,366,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1974 33,559,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1975 53,323,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1976 59,795,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1977 41,327,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1978 37,439,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1979 22,336,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1980 84,468,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1981 165,589,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1982 76,700,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1983 55,193,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1984 27,881,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1985 2,775,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1986 (mint sets only) 247,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1987 (mint sets only) 270,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1988 (mint sets only) 346,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1989 (mint sets only) 217,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1990 (mint sets only) 156,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1991 (mint sets only) 189,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1992 (mint sets only) 164,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1993 (mint sets only) 130,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1994 14,369,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1995 Platypus (mint sets only) 132,269 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1995 United Nations 4,800,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1996 20,637,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1997 16,762,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1998 28,862,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 1999 64,209,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2000 35,648,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 82,026,569 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - Australian Capital Territory 2,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - New South Wales 3,200,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 - Centenary of Federation - Norfolk Island 2,200,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - Northern Territory 2,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - Queensland 2,300,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - South Australia 2,400,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty cents 2001 Centenary of Federation - Tasmania 2,200,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - Victoria 2,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Centenary of Federation - Western Australia 2,400,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2001 Donald Bradman 10,000,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2002 27,283,514 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2003 Volunteers 7,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2004 72,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2005 58,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2005 60th Anniversary of the End of WW2 33,500,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2006 102,462,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2007 42,712,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2008 132,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2009 43,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2009 Decimal Pattern 7,500 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2010 59,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty cents 2010 ATO 11,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2011 15,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2011 International Women's Day 6,800,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2011 Royal Wedding 10,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2011 International Year of Volunteers 6,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2012 34,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2013 43,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2013 Centenary of Canberra 6,200,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2014 52,300,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2015 24,400,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2016 unknown Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA [year]
Twenty Cents 2016 Changeover unknown Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2016 FIFTY YEARS
Twenty Cents: Some useful external links
Australian Coin Collecting Blog - The Complete Guide to the Australian 20 Cent (20c)