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Detailed information about coin type: Twenty Cents Platypus from Australia:

Coin type: Twenty Cents Platypus
Description

The twenty cent coin was first introduced with decimal currency on 14 February 1966.

Composition: 75% copper, 25% nickel.

CountryAustralia CurrencyAustralian Dollar
Sub-type ofTwenty Cents Sub-types
Face value20 (x Cent)
Years produced1966 - ? CurrentYes
MaterialCuproNickel DesignerStuart Devlin
Production technologyMilled (machine-made) ShapeRound
Size (mm)28.6500 Thickness (mm)2.5200
Mass (g)11.3000
Obverse

Effigy of the ruling monarch, legend.

Obverse inscriptionLegend 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 inscription20
EdgeMilled Edge inscriptionNone
Twenty Cents Platypus: Photos

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

Specimen Coin - 20 Cents, Australia, 1966
Copyright: Museums Victoria / CC BY
Author:
source
List of 50 coins of type: Twenty Cents Platypus from Australia
NameMintageReignEffigyLegend
Twenty Cents 1966 58,241,110 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1966
Twenty Cents 1967 83,848,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1967
Twenty Cents 1968 40,537,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1968
Twenty Cents 1969 16,514,999 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1969
Twenty Cents 1970 23,286,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1970
Twenty Cents 1971 8,957,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1971
Twenty Cents 1972 16,653,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1972
Twenty Cents 1973 23,366,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1973
Twenty Cents 1974 33,559,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1974
Twenty Cents 1975 53,323,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1975
Twenty Cents 1976 59,795,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1976
Twenty Cents 1977 41,327,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1977
Twenty Cents 1978 37,439,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1978
Twenty Cents 1979 22,336,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1979
Twenty Cents 1980 84,468,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1980
Twenty Cents 1981 165,589,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1981
Twenty Cents 1982 76,700,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1982
Twenty Cents 1983 55,193,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1983
Twenty Cents 1984 27,881,000 Queen Elizabeth II Portrait by Arnold Machin (Second Portrait) ELIZABETH II AUSTRALIA 1984
Twenty Cents 1985 2,775,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1985
Twenty Cents 1986 (mint sets only) 247,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1986
Twenty Cents 1987 (mint sets only) 270,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1987
Twenty Cents 1988 (mint sets only) 346,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1988
Twenty Cents 1989 (mint sets only) 217,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1989
Twenty Cents 1990 (mint sets only) 156,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1990
Twenty Cents 1991 (mint sets only) 189,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1991
Twenty Cents 1992 (mint sets only) 164,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1992
Twenty Cents 1993 (mint sets only) 130,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1993
Twenty Cents 1994 14,369,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1994
Twenty Cents 1995 Platypus (mint sets only) 132,269 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1995
Twenty Cents 1996 20,637,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1996
Twenty Cents 1997 16,762,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1997
Twenty Cents 1998 28,862,000 Queen Elizabeth II Portrait by Raphael David Maklouf (Third Portrait) ELIZABETH II AUSTRALIA 1998
Twenty Cents 1999 64,209,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 1999
Twenty Cents 2000 35,648,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2000
Twenty Cents 2001 82,026,569 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2001
Twenty Cents 2002 27,283,514 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2002
Twenty Cents 2004 72,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2004
Twenty Cents 2005 58,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2005
Twenty Cents 2006 102,462,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2006
Twenty Cents 2007 42,712,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2007
Twenty Cents 2008 132,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2008
Twenty Cents 2009 43,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2009
Twenty Cents 2010 59,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2010
Twenty Cents 2011 15,100,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2011
Twenty Cents 2012 34,600,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2012
Twenty Cents 2013 43,900,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2013
Twenty Cents 2014 52,300,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2014
Twenty Cents 2015 24,400,000 Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2015
Twenty Cents 2016 unknown Queen Elizabeth II Portrait by Ian Rank-Broadley (Fourth Portrait) ELIZABETH II AUSTRALIA 2016
Twenty Cents Platypus: Some useful external links
Twenty Cent | Royal Australian Mint Australian Coin Collecting Blog - Australian 20 Cent Coin Mintages