Spectacular postcards capture 1890s France in vibrant color
 

Spectacular postcards capture 1890s France in vibrant color
http://i.amz.mshcdn.com/tSy6F_v_a6HF...54d3a96ee9.jpghttp://a.amz.mshcdn.com/assets/feed-...8be198fb13.jpghttp://a.amz.mshcdn.com/assets/feed-...6a4ca77139.jpg


The Eiffel Tower and the Trocadero.

Image: Library of Congress

These postcards of France in the last years of the 19th century were created using the Photochrom process, a technique by which black-and-white photos were imbued with vibrant and lifelike color.

Invented in the 1880s by a Swiss printer, the Photochrom process began with coating a tablet of lithographic limestone with a light-sensitive emulsion and exposing it to sunlight under a photo negative for several hours.

The emulsion would then harden in proportion to the tones of the negative, resulting in a fixed lithographic image on the tablet. Read more...

More about History, Retronaut, France, Paris, and Photochromhttp://pubads.g.doubleclick.net/gamp...0&c=1497126731
http://feeds.feedburner.com/~r/Mashable/~4/7kLhLkP6Wh0