A Bell in the Tower Was Ringing the Hour, plate 4 from Edmond Picard's Le Jure by Odilon Redon https://www.rawpixel.com/image/8975792/image-paper-person-artFree Image from public domain licenseA wealthy patient falls over having a tooth extracted with vigour by a fashionable dentist. Watercolour, 18--. https://www.rawpixel.com/image/13965105/image-cartoon-face-personFree Image from public domain licenseClocks: a Ferguson clock, face (right), and diagrams of the mechanism (left). Engraving by A. Bell. https://www.rawpixel.com/image/13980064/image-paper-cartoon-faceFree Image from public domain licenseAtlas of head sections : fifty-three engraved copperplates of frozen sections of the head and fifty-three key plates with… https://www.rawpixel.com/image/13985407/image-paper-cartoon-faceFree Image from public domain licenseEen hoofd in een lantaarn (1891) by Odilon Redon and Becquet https://www.rawpixel.com/image/13766651/een-hoofd-een-lantaarn-1891-odilon-redon-and-becquetFree Image from public domain license