Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40001-020-00423-4/MediaObjects/40001_2020_423_Fig1_HTML.png)
(source Wikipedia https://de.wikipedia.org/wiki/Pestdoktor#/media/Datei:Paul_Fürst,_Der_Doctor_Schnabel_von_Rom_(coloured_version).png)
Colored version of a copper engraving of Doctor Schnabel (i.e., Dr. Beak), a plague doctor in seventeenth-century Rome, circa 1656 by Paul Fürst (1608–1666) of Nuremberg made for a broadsheet, German derivate of a sheet of Sebastiano Zecchini, 1656