Caption:
Polyhedral variations based on the five Platonic solids, or 'regular bodies': the tetrahedron, cube, octahedron, dodecahedron, and icosahedron. Etching from "A True and Thorough Instruction in Geometry (Ein aigentliche und grundtliche anweysung in die Geometria)", 1543, by Augustin Hirschvogel (1503–1553).