I read most of the questioners about a way to sell "collector dolls". I am a collector also, and it hit me that maybe I should suggest the TV show, "PAWN STARS" might just be interested.
They are located in Las Vegas, NV. Maybe by contacting them, you
can confirm whether or not they can do business with you other than
having to go to Vegas to deal.
Many people have heirloom dolls that have been handed down from mother to daughter for generations. This is a page about finding the value of old dolls.
Kewpie Dolls made by Effanbee, come in various sizes and colors. Determining the value of a doll can be researched on Ebay.
If you have inherited or acquired a number of dolls that you wish to sell, it can often be more effective to sell them as an entire collection. It's best to do a basic search online to make sure you don't have any dolls that are very rare or valuable first to help you in pricing.
