You may remember when we posted about 100 Year Old Color Photos From The Russian Empire. Recently we stumbled upon this equally old snaps from the city of love. All the images above were taken using Autochrome Lumière technology. The Autochrome Lumière is an early color photography process. Patented in 1903 by the Lumière brothers in France and first marketed in 1907, it was the principal color photography process in use before the advent of subtractive color film in the mid-1930s. It is an additive color “mosaic screen plate” process. The medium consists of a glass plate coated on one side with a random mosaic of microscopic grains of potato starch dyed red-orange, green and blue-violet (an unusual but functional variant of the standard red, green and blue additive colors) which act as color filters. Lampblack fills the spaces between grains, and a black-and-white panchromatic silver halide emulsion is coated on top of the filter layer.