One of the several surviving original design drawings produced by the mason magistri during the cathedral’s construction. These are the largest surviving, having a size of approximately 405cm x 86cm. They show the elevation of a central section of cathedral’s west façade.
This drawing features some details which are missing on what was completed. Which is not necessarily surprising, as even though the overall proportions and position of certain elements were rarely changed, specific detailing considerations could vary greatly between the succeeding Head Masters.