Old painting of an interior scene

Charming old painting depicting 3 women in the interior of a bourgeois house. Pretty genre scene from the early 20th century. The painting is signed wilhelm lower right but is not dated. Framed painting and in good condition. Visible signs of time: the wooden frame has some scratches and traces of superficial rubbing. Height: 52.5 cm width: 45 cm depth: 3 cm dimensions without frame: 44.5 cm X 37 cm fast and careful shipping.