This photo shows Sophie Troubetzkaya wearing a light-color dress with pleated hem coyly looking downwards.
From Paul Frecker; sepia tone removed by gogm.
Keywords: Disdéri, Sophie Trubetzkaya, Sofia Sergeyevna Trubetskaya, Трубецкая - Софья Сергеевна, duchesse de Morny, de Flahaut family, Trubetzkoi family, Princess, Duchess, straight coiffure, headdress, high neckline, pelisse bodice, crinoline, flounces, ruching, wrap, lace