caption: The image shows a mannequin wearing a black dress with ruffles and a long sleeve, which is believed to be a costume from the 18th century. The dress is made of a dark fabric and has a fitted bodice with a full skirt that falls to the floor. The sleeves are long and the dress has a high neckline and long sleeves. The fabric has a subtle sheen and the ruffled hemline adds a touch of elegance to the look.