Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
Picryl description: Public domain image from Robert Dennis collection of stereoscopic prints, free to use, no copyright restrictions.