From mulpix.com-instagram-otma_romanov_history_picture.html; the colored band and truncated bottom removed flaws in the original fully oval portrait along with some fixing with Photoshop.
Princess Louise wears a frilly early 70s dress with frills and a square neckline as well as a curly coiffure.
Keywords: 1871, Graves, Princess Louise, Marchioness of Lorne, Duchess of Argyll, Hanover family, Sutherland family, Princess, Duchess, British, curly coiffure, curly chignon, chemise, lace-edged modesty piece, square neckline, bodice, square décolletage, lace bertha, draped jeweled bodice ornament, floral bodice ornament, close sleeves