Robuta

https://www.sophiedupreautographs.com/stock/30133 (Maud Mary, 1843-1878, Princess, Daughter of Queen Victoria, wife of Ludwig IV, Grand Duke of Hesse... Unsigned cabinet photo by Carl Backofen,. showing her head and shoulders, wearing a glorious tiara, 6¼ x 4¼, no place, Darmstadt, no date, c. queen victorialudwig ivgrand dukemaudmary