Observations chirurgicales sur les maladies de l’urèthre, traitées suivant une nouvelle méthode.

Jacques Daran.

Observations chirurgicales sur les maladies de l’urèthre, traitées suivant une nouvelle méthode.

Paris:

De Bure,

1748.

In the early 1700s, the engraver Jacob Christophe Le Blon (1667–1741) devised a three-color and four-color printing technique using mezzotint engraving and blue-, yellow-, red-, and black-inked plates. Jacques Gautier (later known as Gautier d’Agoty, 1717–1785) briefly worked as an assistant to Le Blon. When Le Blon died, Gautier acquired his royal privilege for color printing and began claiming that it was he who had invented the four-color printing technique. His royal privilege gave him the exclusive right to produced color prints in anatomy, botany, and natural history.

From the collection of Rare Book School