VESSEL NAME: LIGHTSHIP NO. 40 MODEL HISTORY: This model was built for display at the Centennial Exhibition held in Philadelphia in 1876. The Lighthouse Board mounted a significant display in the Government Building, and evidently commissioned this model of its most recent lightship for inclusion. This model is a rare survival from that period, and documents both the technical aspects of the lightship and the model building techniques then in use. This model was also displayed in the United States Lighthouse Establishment exhibit in the United States Government Building at the World's Columbian Exposition in Chicago in 1893.