Check out this Greek bronze Phrygian helmet (late Classical to early Hellenistic period, circa 350-300 B.C.)
The Phrygian helmet, also known as the Thracian helmet, was a type of helmet that originated in Classical Greece and was widely used in Thrace, Dacia, Magna Graecia and the Hellenistic world until well into the Roman Empire. The name given to this type of helmet are derived from its shape, in particular the high and forward inclined apex, in which it resembles the caps (usually of leather) habitually worn by Phrygian and Thracian peoples. The Phrygian helmet was worn by Macedonian cavalry in King Philip’s day (r. 359-336 BC) but his son Alexander (the Great) is said to have preferred the open-faced Boeotian helmet for his cavalry, as recommended by Xenophon. The Phrygian helmet is prominently worn in representations of the infantry of Alexander the Great’s army, such on the contemporary Alexander sarcophagus The Phrygian helmet was in prominent use at the end of the Classical Era and into the Hellenistic period, replacing the earlier Corinthian type from the 5th century BC. (Sourc...