1865 French Silk evening dress at the Metropolitan Museum of Art, New York - If you click the pin, you will see that this is actually an example of a transformation dress. Such a dress was made up of three pieces: a skirt, a day bodice and an evening bodice. The one shown here is the evening bodice; the day bodice is not as decorated, has a higher neckline, and long sleeves.
Mary Lincoln wore this silk taffeta two-piece dress in 1861, with an evening bodice as the top piece. The pattern of black stripes and purple flowers is woven into the silk. Later in the 19th century, the original evening bodice was replaced with this daytime bodice made of fabric taken from the skirt.