SASANIAN KINGS. Khosrau I (Anush-ravan), AD. 531-579. Silver Drachm (4.12 gm; 28 mm). SK (Sakastan) mint, year 27. Obverse; Khosrau's bust turning right, reverse, fire altar with attendants mint: SK (Sakastan), year 27. SK mint for Khosrau I are rare. Sunrise 970var. Choice EF. Toned.