The lightest blond hair, the bluest eyes, and a landscape setting with distant blue and cloudy blue sky to highlight her eyes. The face is an astonishing 5/8" from chin to hairline. When we enlarge these to the extent we do, you'd think it would be nothing but a splotchy blur, but look how delicately the artist has worked. Like the vast majority of these, that capable artist has not signed his or her work. There were no hints of ID, either. The frame is quite special - the carved ruffled edging which was popular in the reign of Louis-Philippe, and slightly before, a revival of an old Dutch or Flemish frame border or trim to the wooden mount-style frame. Perhaps she is Northern European. The mat within which she remains, perfect beneath her original convex cover glass, is typical brass but with a karat gold surface plaque - not gold plated, but a cast panel which is adhered on top of the brass. I didn't think to test it when it was apart, and so will only mention it. Might be 10k, might be higher. More typical for French would be 18k, but the more I look at her, perhaps not French after all. Measurements in full on the photos.
Very good to excellent condition for age and type, the wafer is in fine condition and has an original backing with foil where her face is, in order to reflect the light. The old foil has darkened so we have a white paper between it and the painting. Convex cover glass is clean and without flaw. The board of the old frame shows signs of age, hairlines to the lacquer surface. The outer ripple-carved wood border is complete.