Louis Breton created a set of 69 illustrations of demons, which were then engraved by M. Jarrault. J.A.S. Collin de Plancy then published the set with brief descriptions in his book “Dictionnaire Infernal.” The book was published in French throughout the 1800s in several editions.
Many of these demon illustrations were republished in S. L. MacGregor Mathers’ The Goetia: The Lesser Key of Solomon, though some were left out. Also, 5 of the engravings weren’t of demons, so I’m choosing not to include them here.
All of these are cross-referenced to their longer descriptions somewhere else in the site, as de Plancy’s descriptions aren’t very long – they also aren’t exact translations, as I’ve condensed most of them further to make them more readable and to avoid plagiarizing the newer English translation of the text (Trident Books, 1999).