A special genre of still life painting in the 17th century were the quodlibets: deceptively real-looking letter boards strung with securing straps combining various objects. In his illusionistic tromp l’oeil painting style, the Frankfurt artist Juncker presents a self-portrait pinned to a door. With details like crawling flies, the portrait’s rolled-up corner, nails casting shadows, and the chalk writing on the upper portion of the door, the painter almost playfully displays his virtuosity.