A signum was a standard, the military emblem, for each cohort or century in a legion. The signum had a number of phalarae (disks or medallions) along with a number of other elements mounted on a pole. The pole could be topped with a leaf-shaped spear head or a manus (open human hand) image denoting the oath of loyalty taken by the soldiers. It sometimes included a representation of a wreath, probably denoting an honour or award. The signum was carried by the units' signifer. The task of carrying the signum in battle was dangerous, as the soldier had to stand in the first rank and could carry only a small buckler. It was that banner that the men from each individual century would rally around. A soldier could also gain the position of discentes signiferorum, or standard bearer in training. If the signifer was lost in battle, the whole unit was dishonored.