What is my coin worth? Well, that's a tough question. Any coin's value will be based on several items: the year it was minted, the Mint facility where the coin was made and the coin's grade, condition or state of preservation. There are many other factors to take into consideration as well, but they are too numerous to mention here. Your best bet to determine a coin's value is to have the coin viewed by a dealer or seasoned collector. You must know a coin's grade to look up its value in a price guide. The grade is based on a scale of 1 to 70, with 60 and higher being reserved for coins in Mint State or Uncirculated condition. Proof coins are made differently from other coins and are graded differently as well. Any coin with wear on it, would not grade Uncirculated. To determine a coin's grade, you can either buy a book and learn about grading, visit a professional coin dealer in your area or submit the coin to a coin grading service.