38. William Blake, The First Book of Urizen copy F, plate 24. Relief etching, 15.0 x 10.4 cm., etched 1794, color printed and finished in watercolors and pen and ink 1794. Typ 6500 42F, Department of Printing and Graphic Arts, Houghton Library, Harvard College Library. Detail of left side of the plate showing traces of color spilling over from relief areas into margin.