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From Wikimedia.
When dress is extremely simple, then white fabrics and accessories can be used to advertise status as done by Lady Wall Court in this 1825 Lawrence portrait.
Keywords: 1825, Lawrence, Lady Wall Court, British, curly coiffure, chemise, modesty piece, trapezoidal neckline, bodice, vee décolletage, dual upper puffed sleeves, cuffs, waist band, Empire low waistline, clasps, bracelets