About Jacques Barraband?

Question

How (by what method) did Jacques Barraband do his prints? The first person to answer this sufficiently will get 'Best Answer'.

Answer 1

etched and engraved copper plates finished by hand, advancing printing proceedure, his studies were mainly done from nature.
LF

Answer 2

Jacques Barraband's rendering skills are unparalleled. His prints of birds remain among the most lifelike in natural history art. His luminously colored engravings, combined with Levaillant¹s exact ornithological depictions represent a high point in the history of ornithological art. In his work, the birds seem to glow on the paper, giving off an inner vitality that comes from a brilliant use of color, a near-perfect rendering of feathers, and a breathtaking mastery of the printing process. Barraband collaborated with Louis Bouquet and Langlois to create the engravings. The plates were then inked à la poupée (several of the same plates were inked with different colors carefully applied one over the other, as in modern color printing) then pulled from the press. Tonalities and shading were then added by hand.