The information in this article has been prepared for general information purposes only and not as specific advice to any particular person. The Union Jack is recessed (or incused) on less than 1% of the coins but raised on all others.
In 2000, more than 16 million commemorative Millennium 50 cent coins were issued for circulation. While not mint fault, the incuse version of the Millennium 50 cent coin is still valuable. Multiple batches of the 2001 Federation $1 contain the upset error with the Queen’s head struck sideways and upside down on different coins. This means the heads stamp is slightly smaller than usual, giving it double rings around the edges.Īn ‘upset error’ occurs when the Queens head side of the coin is rotated instead of the same upright position as the other side of the coin. In 2000 a batch of $1 coins were accidentally stamped with the head from a 10c coin. This coin from 2007 was incorrectly minted with the Queen’s head on both sides.Ī common mistake on the tails side of a $1 coin can lead to the top kangaroo appearing to have rabbit ears.Ģ000 mule variation double ringed $1 coin
While you’re unlikely to come across a 1930 proof penny in your loose change, many currently circulating coins contain errors or faults made during the minting process which can make them valuable to numismatists (coin collectors).įaults include incorrect alignment, the use of mismatched dies (known as mules), missing dates and strike errors.Ĭheck your loose change drawer for these minting faults that could earn you a nice chunk of change. Only six proof versions of the 1930 penny are known to exist: three have private owners, one in the Museum of Victoria, the National Gallery of South Australia and the British Museum. Australia’s rarest coin, the 1930 penny proof, sold for $225,000 in 1998.