When the price of silver itself is at its highest, the value of the coins go up. Keep a check on the price of silver thru the newspaper's listings of the commodities markets. Also for the value of the coins themselves there are numismatist papers and magazines that list the prices sort of like a "Blue Book" is for cars but for coins instead. Lots of coin dealers list on the Internet so do a search of them. Compare their price listings. As I said, value can go up and down depending on the price of the silver itself.