Don't let the name fool you: tintypes are actually based on a thin iron-sheet that holds a crisp, black-and-white or chocolate-toned image.
While tintypes were invented in 1855, they became widely used to document Civil War battles, encampments, and soldiers, and then later mobile studios appeared at fairs, carnivals, and with traveling photographers.
CDVs were first introduced in New York in 1859 and were incredibly popular during the Civil War, most likely because of their portability.
They were still popular into the 1880s, so dating CDVs can be tricky unless you pay attention to clues within the photograph and on the card the photograph is placed on (front and back).
There are ways to date the images inside this range, but for now lets move on to the next type: Ambrotypes.It is also helpful to note the name of the photographer, as that may help you further narrow down the date and location, if no other information is available. I wasn't able to find anything else about this couple with a quick search. University archive finding aids frequently help pinpoint this type of information, as mentioned in this blog post.Be creative in your Google searches to find what you are looking for. I'll give some more clues to help you pinpoint dates in a future blog post.In this blog post I'll give a couple of examples that will show you how to specifically identify CDVs that were created between June 30, 1864, and August 1, 1866.Yes, that sounds pretty darn specific and there's a reason for that.
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