 Under Bahram I, the reverse of coins were changed back to the version minted during the reign of Shapur I, with two attendants turning their backs to the fire altar, instead of facing it.The front of Bahram I's coins shows him wearing the distinctive crown of the angelic divinity Mithra; a headgear decorated with ray-shaped spikes.A coin of Bahram was seemingly minted at Balkh in Tukharistan, which makes it the first imperial Sasanian coin (i.e.