Irene Castle took a turn at modeling for Lucile as seen here.
From Wikimedia.
Irene’s blouse shows only as a charachteristic peplum in this photo. The skirts ends in two saw teeth while the outer skirt would fit in in 2018. The jacket and cuffs are closed with laces instead of buttons.
Keywords: 1917, Lucy Duff Gordon as designer, Lucy Duff Gordon, Lucile, Lucy Sutherland, Lady Duff Gordon, Irene Castle, British, brim hat, laced jacket, vee neckline, lapels, long tapered sleeves, laced cuffs, blouse, peplum, midi-length A-line over-skirt, maxi-length under-skirt, hosiery, shoes