Arch and Rib Profiles (Durand)
In this image, from left to right, depicts the ambulatory transverse arch (fig. 22), the diagonal rib (fig. 23), and the nave aisle transverse arch (fig. 24). The ambulatory transverse arch with its intense linearity dates to the work of Master Renaud in the 1250s. The diagonal rib profile appears in both the nave and the choir. The nave aisle transverse arch dates to the work of Master Thomas and Renaud in the 1230s.