The coin dates to circa AD 364-367 and was minted in the town of Aquileia in northern Italy. It is extremely rare, with only one other example known to have survived until the present day.
Valens was the short-lived ruler of the Eastern Roman Empire from AD 364 until his defeat at the battle of Adrianopolis in AD 378.
The coin is in extremely fine condition, clearly struck and well centred - with a light reddish tone.
Source: Paul Fraser Collections [December 04, 2013]