A bridge lamp is a floor lamp that was used to illuminate the floor or a table used for recreational games, like the bridge. It can be identified easily by its unusually long base and a bridge arm that houses a downward directional light.
The base can be made of cast iron, brass, bronze or zinc, which were the metals that were prevalent in lamp making at the time, while the lampshade can either be glass or fabric. Almost all manufacturers of lighting fixtures made bridge lamps in the late 1800s and early 1900s. In fact, these lamps continued to be manufactured well into the 1950s.