Pair Of Large Physionotraces Early 19th Century

Pair of large physonotraces in pencil and watercolor also known as broad strokes.
Portraits of a man and a woman in profile, probably a Norman couple.
Early 19th century. Very good state. Beautiful period frames in gilded wood and stucco.
Widely used at the end of the 18th century and during the revolutionary era, the physionotrace is a pencil or pastel drawing obtained by projecting the contours of a face onto a sheet of paper stretched on a stretcher using a light source (a candle in general) placed near the model (see photo). The artist then completed the facial features and clothing. The price of a portrait was generally 6 pounds which represents very approximately 7 days of work for an unskilled worker.
there were several workshops in Paris which offered this technique and itinerant artists traveled around and offered their talents to the provincial bourgeoisie.

Dimensions with frame 70x55 cm.