Dating photographs by dress dating games on newgrounds
Carte de visite, or CDV, actually denotes a size or format.
Later photographs employed the same process, but have different names to describe their format.
Assembling a collection of family photographs became a popular tradition.
Photograph albums began appearing in the early 1860s, starting a collecting activity that has lasted to the present time.
This is the easiest of early photographs to identify.
The image was developed on a very thin sheet of paper, and then was glued to stiff card stock.
Dating photographs is one of the things the family history researcher is able to use, but often have a problem when it involves the age of the photograph.
One of the reasons for this is due to the different types of paper or even tin that was used for the photograph.
Around 1870 decorative backdrops and props were used, sometimes to the point of absurdity.
From August 1864 to August 1866 photographs were taxed, which required that stamps be affixed to the photo.
This has become a great way to date Civil War era photos.
Too many fences, rocks, and other decorations detracted from the phototgraph's subject.
General Rule: Elaborate props/background is post-1870 Tax Revenue Stamps were used to help pay for the Civil War.
Therefore, overlap in dating pictures due to image size can occur.