Rock relief of Ardashir I receiving the ring of kingship by the Zoroastrian supreme god Ahura Mazda. The figure behind Ardashir I has been suggested to be Abarsam.
Schindel, Nikolaus (2016). "A new look at the "Thronfolgerprägungen" of the Sasanian king Ardashir I: Goodbye to Shapur I, welcome to Ardashir Sakanshah". The Numismatic Chronicle. 176: 227–240. JSTOR26637321. (registration required)