In general, a 1903 cc dollar in good condition can be worth anywhere from $250 to $500. However, a coin that is in mint condition or has a rare mint mark can be worth significantly more. For example, a 1903 cc dollar in mint condition can be worth upwards of $1,000, while a coin with a rare mint mark (such as the Denver mint mark) can be worth even more.
It is important to note that these values are just estimates and that the actual value of a coin can vary depending on market conditions and the specific characteristics of the coin. If you have a 1903 cc dollar and are interested in knowing its exact value, it is recommended to have it appraised by a professional numismatist.