The exhibit is one of the six ornamental lamps installed on the stone bridge, known as the Double Bridge, at the front gate of the Imperial Palace. Although the ornamental lamps were installed in 1888, they were not actually lit because of concern about the safety of electric lamps, and it is thought they were not formally turned on until 1893. Electricity was supplied by Tokyo Electric Light Co.'s First Electric Light Station in Kojimachi, and the lamps threw light over the Double Bridge for over 90 years. In 1986, when the lighting equipment was replaced, the Imperial Household Agency donated one of the ornamental lamps to Tokyo Elecric Power Company. |