Philip Webb, Emblems of Saints Luke and John, 1863, Watercolour, ink and graphite on paper, Tate, London. https://dartabase.art/cite/tate/A01018

Philip Webb, Emblems of Saints Matthew and Mark, 1863, Watercolour, ink and graphite on paper, Tate, London. https://dartabase.art/cite/tate/A01019

Philip Webb, Study for Heraldic Glass, 1893, Watercolour, ink and graphite on paper, Tate, London. https://dartabase.art/cite/tate/A01016

Philip Webb, Study for Heraldic Glass, 1893, Graphite on paper, Tate, London. https://dartabase.art/cite/tate/A01017