Photographer Anton Orlov recently discovered over 600 color images from World War I on "Magic Lantern" slides in a house in Northern California. The images depict snow-covered villages, train tracks, bullet-riddled buildings, and soldiers in trenches, by houses and on trains. The pictures were taken in Russia, China and Japan. The slides were hand-colored and the colors have been preserved wonderfully.
The photos may be found at http://www.cbsnews.com/2300-205_162-10015434.html.
You also might want to read all the background information about these pictures available at http://thephotopalace.blogspot.com/2013/01/wwi-and-russian-revolution-photos-found.html.
My thanks to newsletter reader Larry Head for telling me about these rare photographs.