Antique French still life oil painting study of game duck

Antique French still life oil painting study of game duck. French School, circa 1890-1900. Signed by the artist but signature is undecipherable. Oil on panel. Gilt gesso frame. Size of frame: 13.25 x 11 inches; Size of panel: 7 x 6 inches; Size of front painting aperture: 7.75 x 5.5 inches. Weight: 1.1 kg (allow 3 kg volumetric weight once packed). Reasonable condition for its age. This painting is quite sombre and melancholy and, although photographed in daylight, please understand that it is quite dark in reality.