Jug

Nineteenth-century silvered glass, or mercury glass as collectors have called it, imitated objects made of silver. To make a silvered glass object a glass blower formed a double-walled vessel and filled it with a solution containing metallic silver which adhered to the walls of the object. Because the silver would discolor and deteriorate if exposed to air, silvered glass objects were sealed with metal or cork plugs. John W. Haines, associated with the Boston Silver-Glass Company, took out a patent on 4 April 1865 for a process of making silvered glass. The metal spout of this object bears that date. An engraved pattern of grapes and grape leaves decorates this object.