43. William Blake, “The Fly.” Relief etching, 11.8 x 7.3 cm., etched 1794, color printed and finished in watercolors 1794. Songs of Innocence and of Experience copy F, 1789/1794. Yale Center for British Art, Paul Mellon Collection. Detail of gray opaque colors applied to the impression over printed colors. Copy F was printed in the same session as copy T1.