Pastel on old photograph

[Elizabeth Schott]

A frame store sent a lady over today who has just moved to our city. In transit, a portrait of her father was injured.

This is a photograph circa 1900, that has been colorized with pastels. It even lists the colors on the background. Looking at it, one would think it was airbrushed because the pigment is perfectly smooth. When you hold it up to the light there is not any breaks where colors begin and end.

My only concern with fixing this is the smoothness of his skin tone. The background and other areas do not look like such a problem.

Is anyone familar with the type of portraiture? I have only seen photo's that have been dyed (with inks) or have pencil, for color.

Thanks,

Here is the full photo, size is 16 x 20. It is on a photo board that we would consider to be "hot press" illustration board now.