Dusk

(One of those very vague descriptions that lends itself to a great deal of creativity in the drapery and trimming of the dress.)

Dress of dull grey, muslin or gauze, over satin; silver ornaments and smoked pearls; a bat on shoulders.

(See also: In The Gloaming)

Source: Holt, Ardern.  Fancy Dresses Described, 5th Edition.  London: Debenham & Freebody, 1887.