How do I find someone who can help me identify an old doll?

I have a doll that was my mothers and I am curious how much it is worth. The only identification it has are on the shoes which say, Cinderella No. 3. The manufacturer of the shoes is Wilkinson %26amp; Gross Inc. The doll is approximately 18 inches tall with sleep eyes, wearing a wedding dress and veil.|||Call Sotheby's in NYC @ 212.606.7000 %26amp; ask for the Arcade Dept. Someone there should be able to help you.|||Go to an antique shop and see what they think there. or go on the internet... or send me a picture of the doll and specifications and i can send it to my uncles boyfriends mother who is a doll expert and an antique expert and i can get it back to you