Well i did attempt a quick redraw - as you can see even this draft - it doesnt work very well from a photocopy...How do we know if the features are accurate ? The hair i guess is bald, but not sure.
The problem with the image is the lack of texture, so in all attempts a restorer has no choice but to use a method of smudge the black and white...even with adding a skin texture over, you have to smudge it like you would a chalk drawing. So no texture to the image. Makes it tough...anyway..thats another story.