Inspired by a favorite lamp in Martha’s Fifth Avenue apartment, this collection is characterized by slender but sturdy square tubes and detailed cast-metal bases and backplates. Finishes of Warm Bronze and Brushed Nickel are accented by shades in Talc Linen and Fawn Shantung, respectively, and a distinctive floor lamp conceals an opal glass torchiere, making it easy to switch between traditional and upward lighting.