Once it was dry, albumen prints were used just like salted-paper prints and the image would form by the darkening properties of the sun on the chemicals.
Most of the surviving photographs from the 19th century are on albumen paper.
Daguerreotypes were produced on a thin copper metal support that had a polished coating of silver that was mirror-like.
Daguerreotypes were sealed in glass for protection.
In America, daguerreotypes were often placed in hinged, wooden cases with paper or leather coverings.
If you’re a passionate family history buff like us, everyone from your mother to your Great Aunt Sally knows that they can pawn off boxes of old family photos for you to peruse to your heart’s content.
Sifting through vintage photos can be a family historian’s dream, that is, until you find out that you just can’t seem to identify the time period in which certain photos were taken.
Much like how genealogical resources and classes are helpful to discovering and sharing your family story, knowing some photography history can also be beneficial when it comes to identifying origins of old photos.The following common types of vintage photos, their photographic processes and characteristics could help you positively identify some of your long-lost ancestors.In 1841, William Henry Fox Talbot patented the process of salt printing — the first photographic process that used sodium chloride to make photos more light-sensitive.Salt printing was also the first process to utilize both a negative and a positive allowing photographers to create prints of larger quantities.In 1850, Louis-Desire Blanquart Evrard improved upon Talbot’s salt prints by introducing albumen paper.Photographers would coat a thin sheet of paper with egg white which would hold light-sensitive silver salt on the surface of the paper, preventing image fading.