This frame, thought to be contemporary with the painting, is in a Louis XIV revival, Barbizon style. It is composed of composition ornament on a wooden profile with burnished and matt gilding.
It is a style of frame that appears on a number of paintings in the collection across a relatively wide period, see for example the frames on Gustave Dore, Little Red Riding Hood (Le Chaperon rouge) c.1862, (1061-5), and John Singer Sargent, Hospital at Grenada 1912 (1337-3), which retains the makers label of C. M. May.