German engraving — Fidus, Hugo Hoppener

Fidus was the pseudonym used by German illustrator, painter and publisher Hugo Reinhold Karl Johann Hoppener (1868 - 1948). He was a symbolist artist, whose work directly influenced the psychedelic style of graphic design of the late 1960s.
Fidus served a brief prison sentence for public nudity, earning him the name Fidus ("faithful"). Worked as an illustrator on the magazine Sphinx, his work appeared frequently in Jugend and other illustrated magazines. He created many ornamental drawings, especially for book decoration, as well as ex-libris, posters and designs. He was one of the first artists to use advertising postcards to promote his work. Fidus held mystical Theosophical beliefs, and became interested in German mythology. He often combined mysticism, eroticism, and symbolism, in Art Nouveau and Sezessionist styles. There is an archive of Fidus work at the Berlinische Galerie.