Drebbel was an engraver by profession when living in Holland at Haarlem and Alkmaar as a pupil of his brother-in-law, [https://en.wikipedia.org/wiki/Hendrik_Goltzius Hendrick Goltzius].
In the right hand lower corner of Music and Astronomy we see clearly Drebbel’s monograms,
probably the same kind of monograms with which he later hall-marked his instruments. ----

File:Grammatica.jpeg|Grammatica File:Wiskunde.jpeg|Aritmetica File:Retorica.jpeg|Retorica File:Poesia.jpeg|Poesia File:Musica.jpeg|Musica File:Geometria.jpeg|Geometria File:Astronomia.jpeg|Astronomia

---- Click on images for enlarged view.
[[PDF:1600 De zeven kunsten|View as PDF]] (with inscriptions translated in Dutch). ---- [[Category:Images]] [[Category:Etsen]]