The photographer's name and address usually appeared on the reverse.
Cabinet Portraits were introduced around 1866 and were larger and showed more detail than Carte de visite photographs.
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Jayne Shrimpton MA, photo dating expert and dress historian, offers a professional service to individuals and organisations wishing to date old photographs and artworks.In 1854 James Cutting, an American, patented a new process that produced a very attractive image on glass.A high quality piece of glass was treated with a light sensitive collodion, and then it was exposed in a camera. The back of the glass was then coated with a black varnish, or sometimes a black mat was placed behind it, creating a 'positive' look.Other processes followed such as the Ambrotype process invented by Frederick Scott Archer which was in use from the 1850s to about 1890 and was a less a expensive alternative to the daguerreotype.The Tintype or Ferrotype process which appeared from the 1870s to the 1940s was a cheaper alternative to Ambrotypes.If you have any questions please contact our Support Team.