An Australian 1937 sterling silver Crown (Five Shillings)(George VI), uncirculated and in absolute mint condition could fetch up to $220 AUD. If it has been circulated but still in good condition, it might fetch anything from $35 to $60 AUD.
There were 1.008 million minted.
An Australian 1937 sterling silver Crown (Five Shillings)(George VI)(Proof), uncirculated and in absolute mint condition could fetch up to $42,000 AUD.
There were 100 minted.
1937 and 1938 were the only years the "Crown" coin was released for general circulation in Australia. They were not a popular coin due to their size and weight and were discontinued.
A reputable coin dealer will be able to give a more accurate valuation.
Extra Information - It is composed of 92.5% silver and 7.5% copper. A clumsy manufacturing process, at the Perth Mint, occasionally damaged the rim of the coin.
There were no Australian Florins minted until 1910.
The Australian Florin was never minted in gold.
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.
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.
The last British general circulation Florin was minted in 1967.
The last New Zealand Florin was minted in 1965.