Heinrich Pfenninger - Johann Kaspar Füssli, Johann Caspar Füssli, 1780

Portrait of the entomologist and painter johann kaspar füssli (1743–1786). Filius natu minimus: "the youngest son" (of johann caspar füssli the elder). Author: either heinrich pfenninger (https://www. Portraitindex. De/documents/obj/33904266) or rudolf füssli (iii), johann kaspar's brother (https://www. Portraitindex. De/documents/obj/67095102). Date: 1780.