illustration 46a
46a. William Blake, Experience title plates of Songs of Innocence and of Experience copies F (top) and T1 (bottom). Details of pillars and figures in two impressions, showing that they share the same pattern of printed colors around the date. This shared pattern indicates that the two impressions were printed in the same session. The white escarpments in the copy F impression were painted over in the copy T1 impression in the same gray color used to paint out the date.