The 20 cent coin of the Australian decimal currency system was issued with conversion to decimal currency on 14 February 1966. Metal: 25% Nickel, 75% Copper. Mass: 11.3 grams. Diameter: 28.52 mm.

There have been various reverses:

• 1966-current: A Platypus in water with the number 20 top right hand corner, designed by Stuart Devlin.
• 1995:50 years of the United Nations with the UN emblem.
• 2001:100 years of Australian Federation, set of nine coins; six for the states, 2 for the territories and Norfolk Island.
• 2001:Donald Bradman's death.
• 2003:Commemorating Volunteers.
• 2005:60 years since the end of the Second World War, with WORLD WAR 1939-1945 COMING HOME lettering.

Three different obverses have so far been used; 1966 to 1984 the head of Queen Elizabeth II by Arnold Machin; between 1985 and 1998 the head by Raphael Maklouf; and since 1999 the head by Ian Rank-Broadley. Inscription of AUSTRALIA on the right hand side and ELIZABETH II on the left hand side.

For the Broadley head there are 3 issues: 1999 with thicker lettering, 2000-2003 slightly reduced lettering by 0.01 mm, 2004 reduced head all around by 2 mm and A's with flat top and thicker lettering, 2005 a reversion to 2000 series. Australian Twenty Cents.jpg

See also

• Australian coins

Biography

1966 establishments | Australian coins