I am presently paying half attention to a PBS show where people bring in
their garage sale and auction finds, and experts tell them what they are and
how much they're worh. A fellow brought in a large matted and framed sepia
tone-like landscape print that he had purchased at some kind of sale near
Grand Junction, Colorado several years ago.
It was a William Henry Jackson original print. I know only a small amount
about him, but he was famous for his landscape photos in the 1870's and was
one of the first persons to photograph Yellowstone NP.
The man who bought the photos purchased four at a price of $15 each. They
are worth $4000 - $5000 each.
Tom C.