Antique painting by Anker 1875

Painting of an elderly woman sitting on a chair knitting. and a young girl holding basket standing next to her. The woman has her feet rested on a block of wood, and her sewing baskets are on the floor near her. The young girl is dressed in a black and red dress with white sleeves, and she has a black hair band on her short blond hair. There is also a large brown bottle on top of what appears to be a counter top of sorts. The painting is signed on the lower left hand side. It reads: Anker 1875.  I believe the frame is original. On the back of the frame, it has brown paper covering it and there are markings:  Marad, Style # 317 E ,88E3  is the best I can make of it.