ca. 1857 Comtesse de Tanlay by ? (Musée d'Orsay - Paris France)
From Musée d'Orsay; spots removed with Photoshop by gogm and image enlarged by half and sepia tone removed by gogm.
The dating of this portrait may be about right. The year 1857 was only a year after cage crinolines came in and the designers made sleeves full to match the full skirts.
Keywords: Marquise, French, straight coiffure, high neckline, collar, three quarter length full banana over-sleeves, lone under=sleeves, cuffs, jacket bodice, buttons, crinoline, flounces, earrings