How can I find the value of a Satsuma Japanese Tea Set?

It is a complete set with pot, creamer, and suger, plus cups and saucers. They are all hand painted and have the Japenese name painted on the bottom of each piece. The tea pot's spout is in the shape of a dragon's head as is the lid while the handle and the cups handles look like the tails of the dragon. The body of the pot has Japanese characters painted on it. The base color is green.