21. The Printer, by Jost Amman; In Hans Sachs: Eygentliche Beschreibung, Frankfurt, 1568.
Attributed works:
22. Details of a Printing Press, Showing Carriage, Rounce, Tympan and Frisket, by Leonardo da Vinci. (Cod. Atl. 372 Recto b.)
Attributed works:
23. Details of a Printing Press, Showing the Hose as Well as the Elements Observed in Fig. 22, by Leonardo da Vinci. (Cod. Atl. 358 Recto b.)
Attributed works:
24. Printing Press with Quick-Acting Double Screw and Press with Carriage Moved by the Pressing Screw, by Leonardo da Vinci. (Cod. Atl. 358 Recto b.)
Attributed works:
25. Studies of the Spine, by Leonardo da Vinci. A Note on Printing is at the Bottom of the Same Page, on the Right. (Windsor 19007 Verso, Anat. Fogli A. 8 Verso, Detail.) Reproduced by Gracious Permission of H. M. The Queen.
Attributed works:
26. De Humanis Corporis Fabrica Libri Septem, by Andreas Vesalius, Basle, 1543. The spine.
Attributed works:
27. Direct Print of a Leaf of Sage (Nature-Printing), by Leonardo da Vinci. (Cod. Atl. 72 Verso a.)
Attributed works:
28. Relief-Etching, by William Blake, from Songs of Innocence (1789).
Attributed works:
29. Relief-Etching, by William Blake, from America (1793), p.8.
Attributed works:
30. Relief-Etching, by Karl Bodmer (Verglas, 1879), by the Comte Process, as Indicated on the Lower Right Corner. By Courtesy of the New York Public Library (Print Division).
Attributed works:
A. Print by Attilio Rossi, Reproducing the Relief-Printing Method Recommended by Leonardo da Vinci (From Windsor No. 19009 Verso.)
Western art unattributed:
20. Device of the Parisian Printer Jodocus Badius Ascensius (1507).