Originating in Bohemia in the 18th century, mercury glass is considered one of the first ""art glass"" varieties -- made for its inherent beauty instead of purely functional value. This modern take on the technique maintains the focus on beauty with its shapely base, while adding modern functionality. A silk-wrapped cord, nickel components, and LED compatibility make this antique interpretation perfect for today.- Care Instructions: Before cleaning any lamp shade or fixture, disconnect the power source. Wipe with a soft, dry cloth. Avoid the use of chemicals and household cleaners as they may damage the finish.- Primary Material: 80% GlassProduct Specifications:- Urn-shaped base with a modern version of a mercury glass finish- 100% cotton hardback tapered drum shade- On-off switch on socket- Takes one maximum 100 watt or equivalent bulb- 60"" silk cord with standard USA 2-prong plug