Either way, we both agree that it's from the 1850s and it's lovely! Has a few other dresses and some hats, but this is the best representative image and besides, that decorative box is just way cool. Typical of the style of that era, this doll is printed both front and back and pieces like the veil shown here go over the head and around the shoulders; sometimes these designs were wonderfully complex for playthings; but cheap paper dolls were still another decade or so away, so the rich little girls who played with these expected the full monty (so to speak).
UPDATE: This auction ended on 3/9 and netted $431.99!