Canson®, a pioneer in photographic paper

Photography pioneers like Gustave Le Gray and Blanquart-Evrard...used Canson® et Frères paper. 
In 1851, French photographer Gustave Le Gray filed a patent for his "dry waxed paper". In his treatise, he stated among other things that he was using Canson® paper to develop his dry waxed paper. Of note is that Gustave Le Gray always trained the major photographers of his era.
The magazine "La Lumière" was the first press publication on photography. It started in 1851 and ran until about 1967. Canson® features in its articles.
photographer in his studio