A gorgeous 1890 postcard tour of the Alpine land of Tyrol
 

A gorgeous 1890 postcard tour of the Alpine land of Tyrol
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Sella Joch and Langkofl.

Image: Library of Congress

These postcards of the Princely County of Tyrol, an Alpine region of the Austro-Hungarian empire, were created using the Photochrom process, an early procedure for imbuing mo**chrome images with surprisingly lifelike color.

Developed in the 1880s by an employee of a Swiss printing company, the process involves coating a lithographic limestone tablet with a photosensitive emulsion and exposing it to light under a photo negative.

The light causes the emulsion to harden in proportion to the tones of the negative, forming a fixed lithographic image on the stone. Read more...

More about Travel, Alps, Photochrom, History, and Retronauthttp://feeds.feedburner.com/~r/Mashable/~4/oOS_Go-s4sg