Shapur I spent much of his reign at war, defeating three Roman emperors — killing Gordian III at the Battle of Misiche, buying off Philip the Arab, and capturing Valerian in 260 AD, the only time in Roman history a reigning emperor was taken prisoner in battle. The Dinar coinage of his reign was almost certainly minted to fund these campaigns and to project Zoroastrian dynastic authority across a rapidly expanding empire.
The Type I designation within Göbl's classification separates the earliest strikes from later variants by subtle differences in the fire altar and attendant figures — distinctions that require direct comparison against reference specimens rather than catalog images alone.
Shapur I spent much of his reign at war, defeating three Roman emperors — killing Gordian III at the Battle of Misiche, buying off Philip the Arab, and capturing Valerian in 260 AD, the only time in Roman history a reigning emperor was taken prisoner in battle. The Dinar coinage of his reign was almost certainly minted to fund these campaigns and to project Zoroastrian dynastic authority across a rapidly expanding empire.
The Type I designation within Göbl's classification separates the earliest strikes from later variants by subtle differences in the fire altar and attendant figures — distinctions that require direct comparison against reference specimens rather than catalog images alone.