An exterior view of the three-story, Italianate home of merchant Supply Clap Thwing at 175 Highland Street in Roxbury, Massachusetts. A central tower containing the main entrance projects from the front façade of the house and extends its crown beyond the roof line. Three people stand at the front door of the house, while a fourth person wearing a top hat leans on the street wall and a fifth person rests on the sill of a second-story window.