The interior (left side) of the block bounded by Sequassen Street, Van Dyke, and Huyshope Avenues. This original structure is a one-story gable-roofed building of random ashlar brownstone. The entire interior is open and unobstructed. Later uses of the building included woodworking and general storage. It is currently vacant but will be turned over to the National Park Service for park use as guest services and exhibition space.