Arab Sassanian of Persia, Khusru II (590-627 CE), Silver Drachm, RD (Ibid) Mint, Obv: crowned and cuirassed bust of the king facing right, marginal Arabic legend, four crescents with a star flanking on the margin, Rev: fire altar flanked by attendants, marginal Arabic legend, four crescents with a star flanking on the margin, 4.1g, 30.94mm, (Mitch. ACW # 1181-83), about extremely fine, Very Rare.