An “extremely rare” 10 cent coin could fetch up to $3,300 if ... Elusive' Rare new gold 50c coins for Australians worth $20: ...

The rare 1984 $1 coin was struck on a 10-cent blank in error, instead of a $1 blank, meaning the coin is silver rather than gold. One of the coins went to auction with a price guide of between $2,000 ...