At first, comparatively short and resting on the camail which covered the head, in time it was made longer, until the helm rested on the shoulders, and being buckled back and front to the body armour became, as it were, part of it, and besides being a better defence was able to support the additional pressure of a crest (which though fashioned of light material was still of considerable weight) with a minimum of fatigue to its wearer. The crest was attached to the crown plate of the helm by means of laces, or by small bolts or other fastenings which passed through holes made for the purpose. It appears improbable that crests were used to any general extent in actual battle, and for the best of all practical reasons, that a crest had been found to be a very dangerous ornament which, at close quarters, served as a handle, while the laces held, by which to pull down the wearer’s head, and King Stephen is said to have been among those that suffered in this way. That they were used in battle to some extent is evident, and Viollet-le-duc, in referring to the abuse of the Tournament, points out that the feudal nobility attempted to treat war itself like a grand tournament and appeared on the field extravagantly arrayed with long surcoats and lambrequins that encumbered their movements and gave them an easy prey to simple archers and similar workmanlike troops. The shape of the helm was naturally susceptible of much variety but its essential structural character remained the same throughout, and consisted principally of three parts, the crown plate and two others for the front and back of the helm respectively. Sight was provided for in one of two ways, either by leaving an opening between the crown and front plate or by piercing the latter with horizontal openings which were strengthened by an additional piece, generally in the form of a cross, and so splayed as to deflect a point that had struck near the opening. Both opening and reinforcing piece may be of value in design, the former from its strong line which must always be reckoned with, and the latter for the opportunity it affords of introducing decorative detail where it may be useful. It is interesting to observe that the back of the helm is of thinner plate than the front, thus dispensing with weight where it was possible to do so. In the later forms of helm, which were fastened by straps to the breast and back, the buckle and the methods of rivetting it to the plates afford other opportunities for utilizing structural details ornamentally. (Fig. 145.) [Illustration: FIG. 145.--Fifteenth Century. Tilting Helm.] The perforations which facilitated breathing were generally on the right-hand side, and though there were instances of their being on both sides it was very unusual in view of the fact that the tournament attack was from the left, and that although the tilting spear had a coronal instead of a point, care would still be taken to give as little hold as possible to the weapon.