Study sheet with drawing examples: portraits, animals, insects

Nineteenth print from a series of drawing examples. Study sheet with heads, animals and insects. In the center three portraits, from left to right: Frederick III the Wise (Elector of Saxony), Anthony van Dyck and Quinten Massijs (the last with his name, place of death and year). Surrounding them various animals and insects including a toucan (after an illustration by Gessner), fox, hare (after Aegidius Sadeler) and rhinoceros beetle and butterfly (after Hoefnagel).