An Australian 1947 50% silver Florin (Two Shillings)(George VI), uncirculated and in absolute mint condition could fetch up to $65 AUD. If it has been circulated but still in good condition, it might fetch anything from $4 to $16 AUD.
There were 37.482 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.
Florin Gheorghiu was born in 1944.
See the related questions link below.
It would depend on the Florin of which country you refer to. The Florins of most British Empire countries were minted at only one mint in 1944, therefore a mintmark was not used. The 1944 Australian Florin was minted both at the Melbourne Mint and the San Francisco Mint. Those minted at the Melbourne Mint have no mintmark. Those minted at the San Francisco Mint have a small "S" above the date and below the Coat of Arms.
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.
Australia has never issued a Halfcrown coin.
The last British Florin was minted in 1970.
The first British Florin was introduced in 1849.