Quote Originally Posted by Rex_Tremende View Post
They have an appealing quality to them. I'm guessing they are autochromes, a kind of photography done with potato starch.

Thanks for posting them.

R.
Quote Originally Posted by McClef View Post
They are probably autochromes which was the main colour process of that period.

http://en.wikipedia.org/wiki/Autochrome_Lumi%C3%A8re

They certainly help to make past seem more lifellike.
Yes, the article says that they are potato-starch autochromes.