I recently found 35 photos from ww1 at a garage sale. The elderly gentleman that I bought them from was a demolition contractor somewhere in the NE US, and would always go through the buildings before he destroyed them. He said that he found these pictures all together with the descriptions attached. They are quite large.. Maybe 11x14 or so. I cannot measure them for sure because I am in college, and the pictures are back at home. I did however take pictures of a few of them. It says on them that they were taken by or published by Underwood & Underwood, and there is something about Eliot service co.
My questions are:
Does anyone recognize these photos? are they rare/ one of a kind?
What might the collectability of them be?
Any suggestions on the best way to preserve them? they are currently in quite good condition, and I would like to keep them that way.
Thank you

















