47. William Blake, title plate, Songs of Experience. Relief etching, 12.4 x 7.2 cm., etched 1794, color printed and finished in watercolors 1794. Songs of Innocence and of Experience copy T1, 1794. National Gallery of Canada, Ottawa. Detail of pillars and figures, computer enhanced by changing the contrast and midtones to reveal the escarpments and other unprinted areas before they were painted over. This pattern of color printing matches what we see in the Songs of Innocence and of Experience copy F (illus. 46a) and copy G (illus. 46b) impressions, both printed in the same session with this copy T1 impression.