Australia 2011 50 cents KM-404

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a typical circulated specimen, from the Mountain Groan Collection
Australia 2011 50 cents rev DSLR.jpg

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 introduced in 1999 and still appears on the fifty cent coin. This is the regular issue, altho this denomination is occasionally used for commemoratives, including KM 1521, 1532, 1533, 1567, 1577, 1579, 1624.

Recorded mintage: 14,380,000 plus proofs plus 2,072 in silver.

Specification: 15.55 g, copper-nickel, 31.65 mm diameter.

Catalog reference: KM 404.


  • 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.

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