Record drawing of the external lower entablature, nearly as built, and of the base of the external Corinthian pilasters

Half-section through the choir at upper level showing the central vault, flying buttress, triforium roof and screen wall

More finished half-section at upper level, developed from 3/1/10

Half-plan of the east end of the choir, north side, from the centre of the first full bay

Half-elevation of the east end of the choir, north side

Elevation of the north side of the choir, east end, from the centre of the first full bay

East–west section of the east end of the choir to the centre of the first full bay

Incomplete half-section through the choir, as built by the mid-1690s, showing an initial proposal for a balustrade over the upper parapet, c.1716