Gupta Dynasty, Samudragupta (335-370 AD), Gold Dinar, "King and Queen" type (Lichchhavayah), issued in the memory of his parents Chandragupta I and Kumaradevi, Obv: king standing at right facing the queen standing at left, king offering a ring to queen?, both having halo on their head, king does not wear a diadem on his head, crescent is visible between king and queen, Brahmi legend "Sri Kumaradevi" at the left field behind queen,"Chandra" and ("Gupta") in the right field divided by crescent standard which is held in the king's left hand, Rev: goddess Durga seated  in the paralambapadasana on a "recumbent Lion facing left", holding cornucopia and pasha, Brahmi legend  at right field "Lichchhavayah", tamgha at top left, 7.76g, 17.97mm, (variant of Altekar, Bayana Hoard #  Pl. I-5/variant of TOTGE, S. Kumar # Class II-Var. A.3/diadem type Unlisted), choice very fine, Extremely Rare. 

Note: The posture of the Goddess seated at the reverse is very scarce. Diadem type is not listed by Kumar and Altekar.