Photographic Medium
Metal Glass
Daguerrotype
Description: Positive image direct onto silver layer on copper substrate. Protective glass cover.
Period: 1840 - 1860
See Wikipedia - Daguerrotype
Ambrotype
Description: Positive image direct onto glass sheet. Protective glass cover.
Period: 1855 - 1865
See Wikipedia - Ambrotype
Tintype
Description: Positive image direct onto coated iron substrate.
Period: 1865 - 1910
See Wikipedia - TinType
Paper
CDV
Description: Prited paper image on card substrate, 54mm x 89mm.
Period: 1854 - 1900
See Wikipedia - Carte de Visite
Cabinet Card
Description: Prited paper image on card substrate, larger than CDV.
Period: 1860 - 1900
See Wikipedia - Cabinet Card
Postcard
Description: 89mm x 127mm. Postcards are a major study having developed within and alongside the postal service since 1840,
and the first picture postcard was sent in 1871.
Period: 1840 onwards
See Wikipedia - Postcard
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