An Australian 1975 Mint Uncirculated coin set in absolute mint condition and its original packaging could fetch up to $40 AUD.
There were 30,121 sets issued.
An Australian 1975 Proof coin set in absolute mint condition and its original packaging could fetch up to $45 AUD.
There were 23,021 sets issued.
A reputable coin dealer will be able to give a more accurate valuation.
The first Australian "Baby" coin sets were produced in 1993.
There were no Australian coin year sets issued in 1942.
Such a coin would have been issued as part of a mint or proof set. Any value would depend on the metal it was struck from and the design of the coin.
An Australian 1978 Mint Uncirculated set could fetch up to $15 AUD. An Australian 1978 Proof set could fetch up to $35 AUD. A reputable coin dealer will be able to give a more accurate valuation.
Such a coin would have been issued as part of a mint or proof set. Any value would depend on the metal it was struck from and the design of the coin.
The Royal Australian Mint never issued a Twenty Dollar coin until the 1990's and then usually in a mint set of bullion coins.
An Australian 1989 One Dollar coin (Proof mint set only) could fetch up to $12 AUD. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 1980 Mint uncirculated coin set, in absolute mint condition and the original packaging could fetch up to $16 AUD. There were 100,000 minted. An Australian 1980 Proof coin set, in absolute mint condition and the original packaging could fetch up to $25 AUD. There were 68,000 minted. A reputable coin dealer will be able to give a more accurate valuation.
An Australian 2007 "Mint" (Year of the Surf Life Saver with exclusive 20 cent coin) uncirculated coin set in its original condition and packaging could fetch up to $30 AUD. An Australian 2007 "Proof" (Year of the Surf Life Saver) uncirculated coin set in its original condition and packaging could fetch up to $90 AUD. An Australian 2007 "Mint" (Berlin Money Fair) uncirculated coin set in its original condition and packaging could fetch up to $60 AUD. A reputable coin dealer will be able to give a more accurate valuation.
The Australian Koala series of coins were only ever minted in platinum and the Twenty-Five Dollar coin was only ever issued as part of a set.
The 5 coin proof set has a value of $6, the 10 coin set has a value of $15 and the 10 coin silver set has a value of $48.
The 1989 50 cent coin was not released into circulation but was only available in a mint set. It valued at around $15-$20