Small antique French oil painting portrait of senior lady in black dress dated 1922

Small antique French oil painting portrait of senior lady in black dress dated 1922. French School, dated 1922. Signed by the artist but tricky to dechiper signature. Oil on board. Gilt gesso frame. Size of frame: 9.75 x 7.5 inches; Size of portrait: 8.5 x 6 inches; Size of front portrait aperture: 8 x 5.75 inches. Weight: 276g (allow 1 kg once packed). Reasonable condition for its age.