Yes, a wife, in accordance with the traditions from 1900
I would agree with you that in the beginning of the 20th century whoever could afford having a woman at home, would let her stay at home. In the poor families however, whoever could work, worked. Women were doing mainly unqualified jobs in the factories or worked as cleaners, cooks, etc. This changed after WWI started. Men were in war, or killed, or crippled. Women had to assume many male professions. That's when it becomes more probable that a women could have been a welder or a watchmaker. (This development empowered women all over Europe and in they became voting rights. Polish women can vote since 1918.)