This is like asking what are American coins worth. The answer is, anywhere from $0.01 to $10,000,000+, depends on the coin, grade, and condition.
Isaac, you need to stop playing these foolish games. Otherwise, people are going to get really PO'ed with you. Chris
@Isaac Weitkuhn I might be able to answer your question... The other day you asked about ancient Malaysian coins. In the great scheme of coins they are rare, but they lack the collector interest that drives market price. This particular example is the earliest struck coin of the Malay region specifically, there are earlier coins of Thailand, India and Burma that circulated in the coastal areas begining in the 4th century AD. The coin pictured below is an indigenous coin (late 8th century AD). The condition of the coin pictured is far better than most that are available. This cost me about $25 dollars a year or two ago on ebay. You should have no problem finding an example on ebay or from a South East Asian coin dealer here in the US. May I recommend Scott Semans' site http://coincoin.com/ He is very approachable and one of the most knowledgeable people in the field. I would expect a decent example could be had $15-$50. Hope this helps.