Australia 2010 20 cents KM-403

a typical circulated specimen, from the Mountain Groan Collection

In 1966, Australia abandoned the sterling coinage she had used since the days of Captain Cook and adopted the decimal dollar and cent. This bust of the queen was used 1999-2019. Other twenty cent pieces for 2010 include KM 1430 (Burke and Willis), KM 1513 (tax office centennial) and KM 1518 (Lost Soldiers of Fromelles).

Recorded mintage: 59,897,000 plus 2,040 in silver plus 450 in gold.

Specification: 11.31 g, copper-nickel, 28.65 mm diameter.

Catalog reference: KM 403.

Source:

• Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 2001-Date, 13th ed., Iola, WI: Krause Publications, 2018.
• McDonald, Greg, The Pocket Guide to Australian Coins and Banknotes, 23rd ed., Lavington, Australia, 2017.
• Pitt, Michael, Renniks Australian Coin and Banknote Values, 32nd Edition, Matraville, New South Wales, Australia: Renniks Publications, 2023.

Link to:

• 2005 20 cents, end of World War Two
• 2010 5 cents
• 2010 20 cents, centennial of the Taxation Office
• 2010 dollar, centennial of Girl Guides
• 2010 100 dollars, 1 oz gold kangaroo
• 2011 20 cents, platypus reverse
• Coins and currency dated 2010
• return to coins of Australia