To find the value of porcelain dolls, first find the manufacturer's stamp and the date the doll was manufactured. Assess the condition of the doll and rate it as mint, near mint, fine, good or poor. Determine if any restoration work has been performed on the doll. Using this information, consult a current collector's magazine or book to determine the approximate value.
Porcelain dolls made before 1930 are very valuable, and specific manufacturers are highly sought after. Some things that affect the condition of the doll include smudges, chips, missing or matted hair and whether the clothing is original. Often, a restored doll is less valuable than one in the original condition. Locate mold numbers or identifying markers on the back of the head, neck or shoulder for antique dolls.
If the age is not easy to ascertain, identify the type of materials used and the construction of the doll. Dolls from the 1800s do not have rooted hair and the heads and limbs are likely made from bisque. The bodies of the dolls are typically wood, sawdust or glue. Dolls made after the 1900s have rooted hair, big round eyes that usually move and are made with mixed porcelain materials.
Contact a professional appraiser for truly antique dolls. Search auction sites for dolls with similar features or markings and see what prices the sellers receive for them. Many books and a few magazines are dedicated to the valuation of collectible pieces, so search a library or bookstore for a reputable publication.