File:Anatomical sketch.jpg

Engraving by Martínez, Crisóstomo, ca1650-1691. (public domain)

Summary: Three upright muscle-manikins, representing views from different sides, with bones sketched in and musculatures fully crosshatched; at right is an outline representation of a child's skeleton; figures are surrounded by proportional circles and lines.

Source: National Libray of Medicine http://wwwihm.nlm.nih.gov/