Great link there are many very good photographs, I was especially impressed by the quality! Bookmarked
I discovered that I really like to watch real color photographies from the WW1 years (not recolored movies though they are horrible!) it is always strange how life like they are, often better than contemporay photos. Here are some good examples
http://worldwaronecolorphotos.com/As more and more color images have resurfaced in the last years, not long ago I thought there were all French but there are Russian
http://blogs.denverpost.com/captured/2009/10/21/color-photography-from-russian-in-the-early-1900s/544/ and some German by Hans Hildenbrand
https://www.facebook.com/media/set/?set=a.280279928704669.71282.228990443833618&type=3.. the first thing I notice is that all machines, buildings and cars etc looked new not ancient like in the movies
