With the price of gold remaining strong, you may have reached a decision to sell those old gold coins you have stashed away. Or you may be thinking of purchasing gold coins, and want to know the true value of gold coins before you go along to a dealer.Whatever your reason for wishing to know the values of gold coins, this information should help.First, you should understand there are basically two kinds of gold coins on the market.There are historical gold coins which were issued for circulation in many countries, including the USA, up until the 1920s and 1930s. (Yes, gold dollar coins were once issued too.) These circulation coins include famous ones like the American half eagles, eagles and double eagles, Indian heads and Saint Gaudens, and British sovereigns. These coins are not pure gold, but have some copper or silver added, to make them more durable. However, because of their collector value, these coins are usually worth much more than the value of the gold they contain.