John Locke. Etching by F. Bartolozzi after G. B. Cipriani, 1765.

The cap of liberty etched at the foot is a mark of association with Thomas Hollis, who had commissioned the print: "He had moreover procured to be engraved the beautiful head of the author by Signor Cipriani. The same artist had engraved for him the head of Locke to be prefixed before the new edition of the treaties on government published in 1763" (Blackburne, op. cit., p. 257). Hollis was a republican and promotor of civil liberties