An antique galvanometer from the Telegraph Works, Silvertown, London, a significant piece of Victorian and early 20th-century engineering. This instrument was manufactured by Telegraph Works Company, a firm so influential that the East London district of Silvertown was named after its founder, S.W. Silver. The company was the "Microsoft of its day," dominating the global telecommunications industry from the mid-1800s until the early 20th century. The device is housed in a wooden case with a metal dial and a needle that deflects left or right to indicate current flow. Dimensions: 18cm x 14cm x 7cm