Australia 1977 50 cents

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a typical circulated specimen, from the Mountain Groan Collection
Australia 1977 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 fifty cent piece was struck in 1977 in honor of the 25th year of queen Elizabeth's reign. Coinage production, formerly divided among the Sydney, Perth and Melbourne mints, is now concentrated at the Canberra Mint. The Perth mint still produces collector coins.

Recorded mintage: 25,076,000 plus 55,000 proofs.

Specification: 15.55 g, copper-nickel, 12-sided, 31.5 mm diameter, designed by Arnold Machin.

Catalog reference: KM 70.


  • Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1901-2000, 42nd ed., Iola, WI: Krause Publications, 2014.
  • McDonald, Greg, The Pocket Guide to Australian Coins and Banknotes, 23rd ed., Lavington, Australia, 2017.

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