Here is a picture of the front doors to an old theatre in 1938. The cameraman was standing directly in front of the theatre. In the glass of the doors you can see 2 men, on the left and the right, watching the cameraman in the window between them. The 2 men are pretty clea but the cameraman is very dark and indistinquishable. Can you make the cameraman visible?

Something like this? Well, I can see the camerman, I think.

You got the idea. I think it is just amazing what little nuggets can be found in old photos. What a shame that cameraman isn't clearer.

Duplicated the layer and tried inverting the colors on the dup.Then ran curves on the darkest spot and set the layer mode to hard light.About as good as i could get it.You might be able to get better results defining the edges.

This one's a little better.I think that's as good as it gets with curves anyways. =)
It is interesting to uncover things like this though.

Think the camera man there are!

HOW DO YOU KNOW HOW TO DO THIS? HOW LONG HAVE YOU USED THIS SOFTWARE?

Stick around Fullback66, there's all kinds of tutorials and helpful people here, you will learn a lot, just ask.