I saw this self-explanatory URL posted to rec.travel.europe:
http://curiouseggs.com/extremely-rar...y-1900s-paris/
These are better viewed on this site - with proper captions.
http://www.paris1914.com/

I can't get that site to work at all on my machine, I just get a display
of spinning cogwheels. The "curiouseggs" one works fine.


At first I thoght those photos must be from a hand-coloring process,
but I see that it is a true,if complicated, color process invented by
the Lumiere Bros.
http://www.paris1914.com/p/about.html

Probably the same process as used in these early photos of Saint
Petersburg:

http://www.gridenko.com/pg
http://en.wikipedia.org/wiki/Sergey_Prokudin-Gorsky

Prokudin-Gorsky's pictures were technically better.

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