You have used such a variety of methods in dating the featured photos that we thought you’d like to share them in one place and help out those who are new to the ‘craft’.
For instance, do you date photos from: the clothing people are wearing; the cars you see; the progress of building construction; the appearance of telegraph poles; an historic event…or something unusual?
The complicated process involved polishing a sheet of silver-plated copper, treating it with fumes, and exposing it to a camera to fix the image to the metal -- this resulted in an image that appears to be fixed on to a mirror.
There are ways to date the images inside this range, but for now lets move on to the next type: Ambrotypes.
Ambrotypes are similar to daguerrotypes in that they were often preserved in similar cases, but the difference comes down to the process used and how it looks.
But to get you started, here are seven tips for dating a photograph, using 1900 as an example.
Internal details are the little things that we take for granted in most pictures -- the objects in the image.
Most processes and formats were only popular for a limited time, so if you can identify these you will also have a rough idea of the photograph’s date.
With just a basic knowledge of what these physical clues can tell you, you are well on your way to revealing the mysteries of your family photographs and their subjects.
I’ll start off the list with something I learned while following the advice of a Flickr friend.
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One way to do this is to consider the methods used to create photographs.
There have been hundreds of different photographic processes, each with their own distinguishing characteristics.
Over the next few weeks, I’ll be showing you how to date your old family photographs by format and process, using the photographic techniques that dominated the first 100 years of commercial photography.