This is one of Schoenhut's 14" dolls.
She has had her head totally repainted with oil paints. It is a nice artistic repaint but it does not really follow Schoenhut's painting style. Too many brush strokes, some colour issues and loss of hair detail are part of the problems.
The first thing to do is to remove the repaint.
Here I have done the first bits of removal. Some original paint is being revealed.