Fig. 10.
Fig. 11.
Fig. 12.
The shapes here given are designed to explain the varying forms from time to time, and not the relative size of actual shields.
The pointed shield was one of the most satisfactory shapes for the display of a single coat of arms, but it became inconvenient, in most cases, when two coats were impaled together or when quarterings were involved, the restricted base rendering it extremely difficult to deal with objects in that part of the shield. The seals and monuments naturally represent shields as very flat, but they were not actually so, but were almost always curved in section to a greater or less extent, and in one or more directions; for armour was designed to deflect a blow rather than to directly resist it, this being one of the ordinary principles on which most kinds of defence are based. As we have seen in the Norman shields, the curve was at first simply from side to side, afterwards, in order to prevent a blow from glancing downwards, the lower part of the shield was made to project, and finally the top was brought forward so that the shield had a double curvature, convex from side to side and concave perpendicularly (Fig. 13).
A large shield called a pavoise was used for fighting on foot, a partial reversion, for definite practical reasons, to the long shield of the Normans. Like the Norman shields, it in some cases had a pointed or rounded base, while in others it was roughly rectangular, its most marked characteristic being the large and projecting rib whose hollow served on occasion to accommodate a supporting stake (Figs. 14 and 15). It was provided with handgrips and, in most cases, with a guige by which it could be slung on the shoulders or carried on the back when not in use. Besides those which were painted with subjects which extended over the whole surface in the usual way, others were decorated with small painted shields drawn on the larger one.
