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Are the ‘Holey Dollar’ and ‘Dump’ coins still legal tender?

The Holey Dollar and Dump are the only Australian coins which have had their ‘legal tender’ status removed, or been ‘demonetised’.

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Australia's first triangular coin marks Parliament House's quarter of a century

Thursday 9th May 2013

Australia's first triangular coin has been minted to mark the 25th anniversary of Australian Parliament House. The silver $5 coin and a special 20c coin were produced by the Royal Australian Mint and were officially launched at Parliament House today.

The triangular $5 fine silver proof coin is 99.9% silver and depicts Australian Parliament House as viewed from one of its courtyards. The world renowned triangular flag mast is the focal point of the design. Just 10,000 of the coins have been minted.

The 20c uncirculated coin is made of cupro nickel. Its design features Australian Parliament House with Old Parliament House in the foreground.

"Australian Parliament House was recognised as a major international architectural achievement when it was opened by Queen Elizabeth II on this same day 25 years ago," said The Hon Bernie Ripoll MP, Parliamentary Secretary to the Treasurer.

"It is fitting that the Mint is demonstrating its own innovation within a minting context with Australia's first triangular coin," said Mr Ripoll.

Department of Parliamentary Services Secretary, Carol Mills was presented with a set of the collectable coins during today's official launch. Students from Reddam House, Leongatha Primary School and Armidale's Presbyterian Ladies College, who were visiting Parliament House during school excursions, also took part in the celebration.

"It is great to see the future of our country, these school children, celebrating this important milestone with us on our birthday morning. What an honour it is to have Australia's first triangular coin mark this moment," said Ms Mills.

For images of the 2013 25th Anniversary of Parliament House coins or more information, please visit or

For media enquiries contact:
Michelle Nakamura, Royal Australian Mint: 0418 164 769
Taryn Bevege, Department of Parliamentary Services: 0431 466 356

Download high-resolution coin image
Coin Description Download
20 cent Circulating Coin

2013 $5 Silver Proof Parliament House Triangular Coin Reverse


$5 Silver Proof Coin

2013 $5 Silver Proof Parliament House Triangular Coin Obverse


$5 Silver Proof Coin

2013 20c Uncirculated Parliament House Coin Reverse


$5 Silver Proof Coin

2013 20c Uncirculated Parliament House Packaging Front


$5 Silver Proof Coin

2013 20c Uncirculated Parliament House Packaging Back