A particularly unusual facade can be seen at Friedrichstraße 20. The erstwhile owner, cabinet maker August Allert, created here a ”spectacular billboard” for “the performances he offered”. This richly adorned facade carved in wood is freely based on the Renaissance building Haus zum Ritter in Heidelberg. The figure of Bernhard II of Baden (1428/29-1458) crowns the facade, along with the motto “Ars Longa – vita brevis”. Another inscription commemorates Prince Elector Carl Theodor, who is shown as an imposing full length figure set in a semicircular niche.