Bidri

Bidri is indian zinc alloy.Common composition is 16 part zinc and 1 part copper.Commonly it is patinated black and inlaid with thin sheets of pure silver.

History
Bidriware is a metal handicraft that originated in Bidar, Karnataka, in the 14th century C.E., during the rule of the Bahamani Sultans. The term 'Bidriware' originates from the township of Bidar, which is still the chief centre for the manufacture of the unique metalware. Due to its striking inlay artwork, Bidriware is an important export handicraft of India and is prized as a symbol of wealth.

Conservation
See Zinc