How much is patty play pal doll worth DATED 1959?

There are several things to consider when valuing a Patti Playpal doll. Most important is...CONDITION! Are there any cracks? Loss of facial coloring? Does she have her original clothes and shoes? Do you have the box and/or hand tag? In addition, the hair color and style is also a factor. Does she have a rare hair color or unusual style? Doll reference books can give an idea, Ebay can give one too.