11-21-2023
https://digitaltennessee.tnsos.gov/context/portraitphotography/article/1025/viewcontent
1857
Photographer J. W. Houghton touts the great improvement of the newly introduced ambrotype over the daguerreotype.
Copyright not evaluated: http://rightsstatements.org/vocab/CNE/1.0/
Library & Archives Microfilm Collection
https://digitaltennessee.tnsos.gov/context/portraitphotography/article/1025/type/native/viewcontent