Picryl description: Public domain image of a historic building in New York City, 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
Public domain scan of architectural print, architecture, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain historical photo of the address side of postcard, free to use, no copyright restrictions image.