No country in Europe possesses roofs to equal those of England created in the 15th century. The great roof of Westminster Hall remains to the present day unique. In Norfolk and Suffolk roofs abound of the hammerbeam class; that at Woolpit, Suffolk, achieves the first rank of quality. Each bracket is carved with strongly designed foliage, the end of every beam terminates in an angel carrying a shield, and the purlins are crested, while each truss is supported by a canopied riche (containing a figure) resting on an angel corbel. Here, too, as at Ipswich and many other churches, there is a row of angels with outspread wings under the wall-plate. This idea of angels in the roof is a very beautiful one, and the effect is much enhanced by the coloring. The roof at St Nicholas, King's Lynn, is a magnificent example of tiebeam construction. The trusses are filled in with tracery at the sides and the centres more or less open, and the beams, which are crested and embattled, contain a row of angels on either side. In Devon, Cullompton possesses a very fine semicircular ceiling supported at intervals by ribs pierced with carving. Each compartment is divided up into small square panels, crossed by diagonal ribs of cresting, while every joint is ornamented with a boss carved in the decorative way peculiar to the Gothic craftsman. The nave roof of Manchester cathedral is nearly flat, and is also divided up into small compartments and bossed; the beams are supported by carved brackets resting on corbels with angels at each base.