This looks like an 1880s dress, not a 1900s dress, due to the A-line silhouette, but the dress has a waist band. It has two necklines created by a collar above and a lower one concealed by the partlet section that ends an extension that resembles a jabot. For details of the hem click here. Click here for details of the beading.
Keywords: Maria Feodorovna (1847-1928), Prinsesse Dagmar, Princess Dagmar, Dagmar (kejserinde af Rusland), Marie Sophie Frederikke Dagmar, Мария Фёдоровна (жена Александра III), Glucksberg family, Romanov family, Princess, Empress, Russian, fitted bodice, high enclosing neckline, lace collar, lace partlet, lace epaulettes, vee neckline, elbow length close sleeves, down turned waistline, A-line skirt, lace-trimmed train