Gold Coin Information
 
A gold coin is a flat disc shaped gold piece that has been authorized by a private organization or a government. The first gold coins go back to 2700 B.C. and the Egyptian Pharaohs and up until 1933 were the primary source of currency. Today they are still circulated as collectors pieces and their value fluctuates with the price of gold on the markets.
 
However there are also other factors that go into determining their value including how hard a coin is to find, (rare) how old it is, what condition it is in, and the number originally made. A good analogy would be number art pieces by a famous artist if you are familiar with how those are valued.
 
Many countries make gold coins and most are used in some form as a commemorative piece. Governments such as the US, Britain Australia,  Africa, Asia, Russia, and many more partake in this process. There are also organizational gold coins such as the Olympics with a gold coin marking each Olympic games.