Public domain image of a historic building, free to use, no copyright restrictions - Picryl description
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 photo of vintage Michigan postcard, free to use, no copyright restrictions image.
Picryl description: Public domain photo of vintage Illinois postcard, free to use, no copyright restrictions image.
Picryl description: Public domain historical photograph of 1930s America during the Great Depression, free to use, no copyright restrictions image.