Photo Restoration on 1939 Photo

I recently had the opportunity to restore this photo for a client. 

This photo is from 1939 and was keep in a wallet for many years. As you can see some of the photo had been rubbed completely off, it's faded and has very little contrast and the color is really yellow. It's difficult to see the faces of the people in the photo.

You can see the the rubbed off portion of the photo is now filled in, i've added contrast so you can actually see the expressions on the faces, I corrected the color, and I cleaned up most of the fine lint,spots and scratched. You can now see the expressions on the faces and see that the little boy is squinting. The story in this photo is now visible.