By the early 1960's, the Australian government had decided that Australia would have a decimal currency and that the designs on the coins and notes would reflect Australia.
The Australian 20 cent coin was introduced into the new Australian decimal currency on the 14th of February, 1966 and has remained largely unchanged.
The obverse has featured three different portraits of Queen Elizabeth II -
Second Portrait - designed by Arnold Machin - 1966 to 1984
Third Portrait - designed by Raphael Maklouf - 1985 to 1998
Fourth Portrait - designed by Ian Rank-Broadley - 1999 to present
The reverse has featured a Duck-billed Platypus design by Stuart Devlin since 1966 to present.
Apart from the 1966 and 1981 issues, all Australian 20 cent coins have been minted at the Royal Australian Mint, Canberra.
The Australian 20 cent coin is occasionally used as a commemorative coin.
The coin is made from 75% copper and 25% nickel giving it a silvery appearance, it is 28.52mm in diameter, weighs 11.31 grams and has a milled edge.
There are no general circulation Australian 20 cent coins that could be considered to be rare or valuable.
on the Australian 20 cent coin it the platypus
Yes, the 10 cent coin is smaller. The Australian 10 cent coin is 23.60 mm in diameter. The Australian 20 cent coin is 28.52 mm in diameter.
The Australian 20 cent coin features a platypus on the reverse.
There is no Australian 1954 20 cent coin. Decimal currency was introduced in 1966.
There is no Australian 1950 20 cent coin. Decimal currency was introduced in 1966.
Such a coin does not exist. The first Australian 20 cent coins were issued in 1966.
Such a coin does not exist. The first Australian 20 cent coins were issued in 1966.
There is no silver in any circulating Australian decimal coin.
The Australian 20 cent coin features the platypus.
No Australian coin has the word "Republic" on it.
One each of the 5, 10, 20 and 50 cent, 1 Dollar and 2 Dollar coins = 50.95 grams. Australian coins have the following weights - 1 cent - 2.59 grams 2 cent - 5.18 grams 5 cent - 2.83 grams 10 cent - 5.66 grams 20 cent - 11.31 grams 50 cent - 15.55 grams 1 Dollar - 9 grams 2 Dollar - 6.6 grams The 1 and 2 cent coins are still legal tender.
Australian 20 cent coins were issued from 1966 until present day. They are still in circulation, so unless they are part of a proof set or there is something rare and unique about them, they are worth 20 cents.