There were no Australian 10 Shilling notes printed in 1966. 1966 is the year they were withdrawn after being replaced by the One Dollar note.
There were no Australian Shillings minted prior to 1910.
The Australian Ten Shilling note had "Half Sovereign" printed on them from 1915 to 1933. To get a valuation, please provide the serial number and the names of the two signatories.
these days about $358 dollars is how much i sold mine
The 1919 Australian Shilling was not issued into general circulation and was a "pattern" strike only. An Australian 1919 sterling silver Shilling (George V)(Proof), uncirculated and in absolute mint condition could fetch up to $400,000 AUD. A reputable coin dealer will be able to give a more accurate valuation.
There were no 1968 Australian Five Dollar notes printed.
There were no Australian Fifty Dollar notes printed in 1984.
You do not give any detail. Any collector value would depend greatly on the signatories and the serial numbers. A wad of 8 consecutively numbered uncirculated notes would have a significant collector value, more so than the value of one note multiplied by eight.
There were no 2003 Australian Ten Dollar star notes issued.
With the possible exception of traders tokens (with the traders business name on them), there were no "Australian" Shillings minted prior to 1910. The only Shillings circulating in Australia prior to 1910 were British Shillings.
There are no general-issue Australian $50 notes dated 2008 that have any value above their face value. There is a very small market for notes that are in perfect (UNC) condition, however that is rather limited at present. The only other notes that will fetch a premium over face value are those with unusual serial numbers such as 999999 - notes like this are scarce, but not particularly rare.
There were twelve predecimal Pennies in a Shilling, as used by many of the British Commonwealth countries. The British Shilling converted to 5 New Pence at the changeover to decimal currency. The Australian and New Zealand Shilling converted to 10 cents at the changeover to decimal currency.
There was no Australian 1953 Crown (Five Shillings) coin minted. 1937 and 1938 were the only two years that Australia produced a Crown (Five Shilling) coin.