I have this in my records as Maria Feodorovna in 1873 - it isn't. Her tight skirt expanding from mid-leg and tablier suggests 1875-1877.
Keywords: Maria Feodorovna (1847-1928), Princess, Tsaritsa, Glucksberg family, Romanov family, curly coiffure, vee neckline, ruff, jacket bodice, lapels, elbow length sleeves, engageantes, bustle, A-line skirt, bustle, tablier, necklace, bracelets