Painting of a nineteenth-century nun

Pretty old nineteenth century painting of a nun. Oil on canvas not signed. Properly stretched on its original frame, the canvas has a small sign of restoration at the bottom right (see photo). Some lack of paint on the corners (see photos) Small cracks without much consequence. Even if the nun is not frankly smiling, this portrait is very beautiful. Height: 73 cm. Width: 60 cm. Depth: 2 cm.