In the dining room, a custom Harvey Probber-style sofa, as well as vintage T.H. Robsjohn-Gibbings klismos chairs featuring Ralph Lauren Home’s Serengeti zebra fabric, from Cain Modern in West Hollywood, California, offer extra seating at the 1950s rosewood table from Van den Akker Antiques. Sheer cashmere Roman shades and wool-flannel drapery panels, both through Holland & Sherry, frame views of Lake Michigan. The wall sconce is from Ralph Pucci International.