From www.pinterest.com/8andyyang8/sir-frank-dicksee-%2B-artists-rifles.
Lady Charlotte's tiara has bird-shaped spikes while her lower bodice sprouts two broad straps that partially cover a white under-bodice with full-ish sleeves.
Keywords: 1910, Dicksee, Charlotte Dunbar, Baroness Inverclyde, Dunbar family, Burns family, Baroness, British, straight coiffure, tiara, square neckline, over-dress, strap sleeves, close skirt, under-dress, elbow length close sleeves, necklace, wrap, lace, fan