This is an antique Spanish Colonial Relicario made of silver, painted tin, and glass. It is a cultural artifact from Mexico. It is a beautiful and rare relicario depicting, on one side the Archangel Gabriel and on the other side, Saint Joseph and the Christ Child. This is an authentic 
piece purchased in 1991 from the late Jim Caswell at his store/gallery, Historia Antiques in Santa Monica, California. Please feel free to email me with any questions. 
Thank you.