This is a photo taken on a stroll through Avignon. The shop is situated just across from the famous Popes palace. The big square in front of it is exposed to sun and heat in the hot Provencal summers. A hat to cover your head and be ready to explore more of the city.
The Cyanotype printing process relies on the light sensitivity of iron salts, creating blue-tinted images. It was developed by John Herschel in the mid 19th century and became famous for being used for large scale engineering plans (hence 'blue-print').
UNIQUE PIECE OF CYANO PRINT