These coins are potentially still in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 50 cents.
An Australian 1976 cupro-nickel 50 cent coin (Elizabeth II), uncirculated and in absolute mint condition could fetch up to $12 AUD.
There were 27.280 million minted.
An Australian 1976 cupro-nickel 50 cent coin (Elizabeth II)(Proof), uncirculated and in absolute mint condition could fetch up to $15 AUD.
A reputable coin dealer will be able to give a more accurate valuation.
Such a coin does not exist. The first Australian 10 cent coin was issued in 1966.
Such a coin does not exist. The Australian 2 cent coin was first issued in February 1966.
5 cent
There is no Australian 1954 20 cent coin. Decimal currency was introduced in 1966.
There is no Australian 1950 20 cent coin. Decimal currency was introduced in 1966.
Such a coin does not exist. The first Australian 20 cent coins were issued in 1966.
Such a coin does not exist. There were no Australian 1967 50 cent coins minted.
Such a coin does not exist. The first Australian 20 cent coins were issued in 1966.
Such a coin does not exist. The Australian "cent" coins were first introduced in 1966.
Such a coin does not exist. The Australian 2 cent coin was first issued in 1966 on the introduction of decimal currency.
Such a coin does not exist. The Australian 1 cent coin was first issued in 1966. The Australian One Penny coin was issued from 1911 to 1964 inclusive.
Such a coin does not exist. The first Australian 2 cent coin was issued in 1966.