Vaughan’s perforated-metal fixture from John Rosselli & Associates diffuses light in the gallery leading to the master bedroom; lamps are by Visual Comfort & Co. A vintage Oriental rug rests on polished-concrete flooring thanks to Nu-Crete Surgeons and Xtreme Polishing Systems. In the entry hallway beyond, an antique Venetian mirror adds a sparkling note to a 19th-century English chest that was a gift from the wife’s mother.