A COBALT BLUE SASANIAN GLASS BEADPersia / Iran, Sasanian Empire, c. 3rd-6th century. Of hexagonal cylinder shape, the glass of a nice transparent cobalt blue color. Condition: With expected wear and small chips along the edges and to the ends. Provenance: The collection of The Zelnik István Southeast Asian Gold Museum. Institutional art collection in Belgium, acquired from the above. Dr. István Zelnik, President of the Hungarian South and Southeast Asian Research Institute, is a former high-ranking Hungarian diplomat who spent several decades in Southeast Asia, building the largest known private collection of Asian art in Europe. Weight: 20 g Dimensions: Length 5.9 cm