He left nineteen single-leaf wood-cuts (i.e. prints rather than book illustrations), apparently made in the period 1505-15, and is mainly remembered for his twelve chiaroscuro woodcuts, which are all extremely rare.
[4] Four of his chiaroscuro prints are somewhat ostentatiously classical, two on the very obscure subjects of Alcon Slaying the Serpent and Pyrgoteles (a famous Ancient Greek gem-carver), as well the better known ones of Pyramus and Thisbe[5] and Orpheus.
[8] Wechtlin's twelve prints were the largest individual contribution to the corpus of about sixty German chiaroscuro woodcuts from the early 16th century - the technique was probably invented by Burgkmair in 1508.
[6] His monogram, used only on eleven of his chiaroscuro prints, consists in its fullest form of his initials "Io V" between two diagonally crossed pilgrim's staves, with a flower in the centre, on a cartellino or plaque, a style copied from Albrecht Dürer.
[7] His prints, recognised as a group,[11] remained unattributed to any documented artist until 1851, when his name on the title page of a book he illustrated was connected with the monogram and the few documentary records.
[16] Better-known today are the often rather gruesome woodcuts for Hans von Gersdorff's (1455–1529) Feldtbuch der Wundartzney (literally "Field-book of the Wound-doctor", 1517, 1st edn.