Firmin Gillot, father of Charles Gillot (1820-1872), invented in 1852 the paniconography for which he took a patent (photoengraving in relief according to the letterpress on several early plate). Later, he invented a new process, again in relief, but nonphotographic.
Around 1870, his son Charles Gillot developed the Gillotage process(photomechanical). Zincography was a Planographic printing process that used Zinc plates This process would quickly predominate the illustrated newspapers and books of the period, such as for example: Le Charivari,Le Rire, L'assiette au beurre, Gil Blas Illustre, and many others. Le Rire, or "Laughter" was a successful humor Magazine published from October 1894 through the 1950s
Gillot's Paris address in 1875: Vve Gillot and Fils, 175, street of Suburb-Saint-Martin, Paris.