Philip Webb’s design for details of a canopy tracery. To the lower left, a narrow column surmounted with a foliate capital supports a triple-lobed arch with a trefoil detail. A gothic spire sits above the column and to the left of a band of decorated crenellation. Above this is a small pier adorned with blind tracery and surmounted with a simple gable. Springing from this is an ornate buttress topped with three curling ornaments. At the top is a spray of a feather and flower. Behind the motive are two light arches drawn in pencil with the rest in black, yellow, and sepia inks.