This ivory warrior head was found in a chamber tomb at Mycenae and dates from the thirteenth century BC. The warrior is wearing a helmet which is reinforced on the outside with slivers of wild boar's tusks. The description of Odysseus' helmet in Iliad 10.261-265 is quite detailed and corresponds to the head-gear worn by this striking ivory head:
Μηριόνης δ᾿ Ὀδυσῆι δίδου βιὸν ἠδὲ φαρέτρην
καὶ ξίφος, ἀμφὶ δέ οἱ κυνέην κεφαλῆφιν ἔθηκε
ῥινοῦ ποιητήν· πολέσιν δ᾿ ἔντοσθεν ἱμᾶσιν
ἐντέτατο στερεῶς· ἔκτοσθε δὲ λευκοὶ ὀδόντες
ἀργιόδοντος ὑὸς θαμέες ἔχον ἔνθα καὶ ἔνθα
εὖ καὶ ἐπισταμένως· μέσσῃ δ᾿ ἐνὶ πῖλος ἀρήρει.
(Homer, Iliad 10.260-265)
And Meriones gave to Odysseus a bow and a quiver and a sword, and about his head he set a helmet made of hide, and with many a tight-stretched thong was it made stiff inside, while on the outside the white teeth of a boar of gleaming tusks were set thick this way and that, well and skilfully, and on the inside was fixed a lining of felt. (Trans. A.T.Murray, Loeb Classical Library)
The head-piece consisted of material on the inside of the helmet and was held together by leather webbing to which small plates of boar's tusk were attached on the outside. In the eighth century BC when the Homeric poems are thought to have been written down, no-one could have seen this type of helmet and so the description of Odysseus' helmet was likely to have come from a memory, preserved in the poetic tradition.