The original example of this distinct type was found in a cave near Hebron, Israel, and as it was probably war-loot of the Jewish Zealots of the Bar Kochba Revolt under Hadrian, can be closely dated. It is the earliest Roman helmet discovered in which the post-Dacian Wars crossbars were probably part of the original construction, as evidenced by the brass lunate decorations applied between the crossbars. During the time of the Dacian Wars with Germanic tribes, Imperial Roman soldiers began reinforcing their helmets with added plates and crossbars. These additions added strength along with beauty and protected against the German's heavy swords and axes.