An Australian 1945 sterling silver Florin (Two Shillings)(George VI), uncirculated and in absolute mint condition could fetch up to $195 AUD. If it has been circulated but still in good condition, it might fetch anything from $10 to $50 AUD.
There were 14.874 million minted.
A reputable coin dealer will be able to give a more accurate valuation.
There were no Australian Florins minted until 1910.
The Australian Florin was never minted in gold.
The 1945 Australian florin has a mintage of 14.87 million coins, so it isn't particularly rare, unless in absolutely premium condition. Average circulated coins presently have a metal value of between A$10 and A$12 each, examples in superior condition (i.e. mint condition) can be worth upwards of A$150 each.
The Australian 1954 Florin (Two Shillings)(Royal Visit Commemorative), was minted only as a 50% silver coin. There is no evidence suggesting that the coin was ever produced in gold. If you have a gold coin, it is because somebody had it plated. Modified coins have no value.
There were no 1914 set of Australian coins issued. Each coin is listed on Wikianswers in the format - "What is the value of a 1914 Australia Florin?".
There were two different types of Australian 1954 Florin minted. The standard type with the Australian Coat of Arms on the reverse, and the Queen Elizabeth II Royal Visit commemorative Florin. The commemorative Florin has the Kangaroo and the Lion, the two animals symbolising Australia and England respectively.
Please check your coin. The Centenary of Melbourne was in 1935. The Australian 1934/35 sterling silver Florin commemorating the Centenary was sold to the public in 1934 and 1935.
Such a coin does not exist. The Australian "cent" coins were first introduced in 1966.
The last British Florin was minted in 1970.
The first British Florin was introduced in 1849.
An Australian 1928 sterling silver Florin (Two Shillings)(George V), uncirculated and in absolute mint condition could fetch up to $1,350 AUD. If it has been circulated but still in good condition, it might fetch anything from $10 to $300 AUD. There were 1.962 million minted. An Australian 1928 sterling silver Florin (Two Shillings)(George V)(Proof), uncirculated and in absolute mint condition could fetch up to $110,000 AUD. A reputable coin dealer will be able to give a more accurate valuation.
There was no 1861 British Florin (Two Shillings) minted.