SASANIAN KINGS. Shahpur II. AD 309-379. PB Unit (5.82 g; 22 mm). No mint. Bust of Shapur II right, wearing mural crown with korymbos and inner ribbon / Fire altar with ribbon and bust right in flames, flanked by two attendants, each wearing mural crown with korymbos. Cf. Gobl SN Ia/6a. Well struck on a nice broad flan. Choice VF. Original patina. Extremely rare.