Coffee table with sphinx base, faux-tortoiseshell and amber-colored veneer. X-shaped bronze frame beneath oval glass with ogee edge. By Maitland-Smith. Faux-shell is made of tessellated stone with brass inlay. With its rich assortment of vintage textiles, lighting, unusual accessories, and estate pieces, David Duncan’s Manhattan antiques gallery has been a prized insider’s resource since its opening in 1990. Located in a brownstone on East 60th Street, its diverse selections range from 18th-century French objets d’art to 20th-century designs.