“and stand to contend with us in battle. So spake he, and the valiant son of Anchises failed not to hearken. And the twain went straight forward, their shoulders clad with shields of bull's-hide, dry and tough, and abundant bronze had been welded thereupon.”
Il. 17.490–494
“I too will cast, and the issue shall rest with Zeus. He spake, and poised his far-shadowing spear and hurled it, and smote upon the shield of AretusArAr, that was well-balanced upon every side, and this stayed not the spear, but the bronze passed clean through, and into the lower belly he drave it through the belt.”