Doll collectors often buy and sell old or antique dolls, according to the National Antique Doll Dealers Association. Antique dolls are also available online on eBay.
The National Antique Doll Dealers Association provides a list of current members. Someone interested in buying or selling an old doll can get in contact with a nearby member to discuss a purchase.
As of March 2015, the website eBay also lists more than 10,000 antique dolls made before 1930. A customer can place a bid on a doll or buy one at a set price. Clicking on a listing provides a description and photographs of the product.