From www.antiqueprints.com; sepia tone removed by gogm.
While Lady Sibell's dress qualifies for The Book of Beauty, it is not really everyday dress. It is casual and was probably reasonably functional. The outfit may not have included a corset.
Keywords: 1897, Jenkins, Richmond, Sibell Grosvenor, Countess, British, high coiffure, vee neckline, elbow length sleeves, tassels, vest, full skirt, necklace, bracelets, theatrical dress