While doing an appraisal for your Barbie doll for identification purposes, check it closely for distinctive features. These features will help you identify the year, style, and ultimately the value of your Barbie. Identification marks are the marks that distinguish your Barbie doll from other model years, styles, and makes of dolls. When doing an appraisal check for identification marks on your Barbie doll. There are many doll appraisal reference books available as well as identification guides for your Barbie. These are great tools for comparing doll markings and providing some visual reference as well through photographs. Finding an identification for your Barbie doll can be challenging and also fun, especially if you find your doll is valuable to the market, even though now it is probably even more valuable to you. Visit www.crazyforbarbie.com/barbiedolldidentification.php for more information on the how to for Barbie Doll Identification.