There were further found in this tomb, in a heap together, thirty-five arrow-heads of obsidian, which were probably mounted on wooden shafts and contained in a wooden quiver which has disappeared. I represent under No. 435 the fifteen different types of these arrow-heads. Nothing could give a better idea of the great antiquity of these tombs than these stone arrow-heads, for the Iliad seems to know only arrow-heads of bronze.[331] Probably there had also been bows deposited in the tomb; but, being of wood, like the quivers and arrow-shafts, they would have decayed. [Illustration: No. 435. Arrow-heads of Obsidian. Sepulchre IV. Size 7 : 8, about.] There were further found here sixty boars'-teeth; of all which the reverse side is cut perfectly flat, and has two borings, which must have served to fasten them on another object, perhaps on horse-trappings. But we see in the Iliad[332] that they were also used on helmets, either as a protection or as an ornament. [Sidenote: BOARS'-TEETH AS ORNAMENTS.] I found there also a large quantity of flat quadrangular pieces cut out of boars' teeth. They are from 1 to 2 inches long and from 1/2 in. to 3/4 in. broad; and they have two perforations, one at each extremity, by which they were attached to other objects, most probably to horse-trappings.[333] I also found a piece of bone, flat and almost circular, with a round hole in the centre, and with six small perforations; its use is unknown to us. I also found there two large copper handles with unequivocal marks that they had once been plated with gold, and thus it is probable that they belong to a large silver vase. Besides the five large copper vessels found (as I have already said) at the southern end of the sepulchre, I found five more at the eastern side, behind the heads of the bodies; further, ten on the west side, at their feet, and twelve at the northern extremity, towards which the heads of two of the bodies were turned. Thus, the sepulchre contained in all thirty-two copper vessels, some of which, however, were too fragmentary to be preserved. The chief types of these copper vessels are shown in the following engravings. No. 436 represents a large can, 1 ft. 8 in. deep, and 1 ft. 4 in. in diameter; it has two handles, of which the one, which is upright, unites the rim to the body, and the other, which is horizontal, is on the lower part of the can. Both handles are fastened with large pins to the vessel. Of this type seven specimens were found in this tomb. [Illustration: No. 436. A large Copper Vessel. Sepulchre IV. Size 1:8.] No. 437 shows one more can of the very same form, but only its upper part can be seen, because it sticks fast in another large copper vessel, and seems to have been welded to it by the funeral fire. Of the form of the lower vessel seven specimens were found; it has two handles standing vertically, each of which is attached to the rim by four large pins. [Sidenote: COPPER VESSELS.]