Subject: ἑταῖροs 'companion' cavalry
Culture: Greco-Macedonian
Setting: Persian wars, western Asia 4thc BC
Object: machaira sword
* Metropolitan Museum of Art
"Iron machaira (sword) Greek, 5th-4th century B.C. ... The machaira's design enabled a warrior to deliver a sharp blow from above."
"Iron machaira (sword) Greek, 5th-4th century B.C. ... Also known as a kopis, the machaira was introduced into Greek weaponry in the late sixth century B.C."