Relief from - probably - "Heralds Wall". If not, from some other wall. A battle fought from a chariot. Carchemish, 950-850 BC.
The museum catalogue indicates their hairdress shows Assyrian influence (I suppose that what it intends with "This lock of hair occurs on every representation of a mans head in the Late Hittite style ..").
Carchemish commanded a strategic crossing of the Euphrates River for caravans engaged in Syrian, Mesopotamian, and Anatolian trade. It was defended by thick double walls with strong towered gates, and in the centre of town stood a high citadel overlooking the river. Excavators have found the remains of a palace and temple on the citadel, as well as a rich series of orthostates (stone slabs set at the bottom of mud-brick walls) whose reliefs were carved in an eclectic style peculiar to northern Syria.