Art Deco styled thunderbird necklace with 13 links set with abalone and onyx. The middle link is marked with “925 M.O. CAMPO, TAXCO, MEX.”. The necklace measures 16-1/2″. Each link measures 7/8″ x 7/8″. Necklace has a hook closure. This necklace is absolutely beautiful and yet has a simple design.