A tour de force of interior design, the living room is a study in contrasts and understated elegance. The walls appear to float and the choice of color makes the space glow. The color palette is restrained chocolate brown and white. The main seating area faces the view from the terrace, which from this vantage point, reveals neighboring rooftops. The furnishings, art, and other objects represent a lifetime of collecting: heirloom antiques juxtaposed with Ralph Lauren sofas, luscious velvet chairs, a Florence Knoll credenza, and a vintage Eames recliner. “Black Watch Series I & II,” a pair of silkscreens by Gene Davis propped against the wall, anchor the symmetrical composition of sofas, side tables, an antique chest of drawers and a Michael Vanderbyl desk.