File:Newton-WilliamBlake.jpg

from en wikipedia. William Blake's Newton (1795), colour print with pen & ink and watercolour.

Blake's picture of Newton as a divine geometer was one of a series he created whilst living in Lambeth in the late 1790s.

Blake's printing appears to have been a form of self-developed monoprint which he then finished with additions in pen and ink coupled with watercolour washes.

Source: http://www.artprints-on-demand.co.uk/noframes/blake/isaac_newton.htm