The western silver coinage of the Guptas may have been imitated by some of the powerful Maitraka rulers of Valabhī, who asserted their independence at the end of the fifth century: coins bearing the name Kṛishṇarāja, at present unidentified, are copied from Skandagupta’s bull type. Far more important are the coins struck by Īśānavarman, the Maukhari, and his successors, whose kingdom was in Bihār. These follow the Central Peacock type, but the head on the obverse, excepting the issue of one king, is turned to the left instead of to the right. These otherwise insignificant coins have a twofold interest: they were copied by the Hun Toramāṇa; and, more important still, the name appearing on the last and most abundant coins of the series is Śilāditya (Pl. VI, 3), who is almost certainly to be identified with the great Harshavardhana of Thāṇeśar and Kanauj, himself a relation of the Maukhari princes. What further strengthens this conjecture is the fact that the dates on the Śilāditya coins are reckoned in a new era, doubtless that which commenced with Harshavardhana’s coronation in A.D. 606, whereas the Maukhari kings use the Gupta era. It is striking testimony to the havoc wrought by the Hun invasions that these tiny silver pieces are the only coins[34] known to have been issued by this great king, who built up on the ruins of Northern India an empire scarcely less extensive than that of the Guptas. [34] Certain thin silver coins of Sassanian type have been doubtfully ascribed to him. Cf. Rapson, _Indian Coins_, p. 34, § 122. The copper money of the Guptas was copied by the Hun princes, Toramāṇa and Mihiragula, but left no legacy behind, unless the small coins which record the names of six Nāga princes of Narwar in Northern Rājputāna may have been derived from it. [Illustration: Fig. 5. _Śrī Maj Jajalla-deva_, in old Nāgarī Script.] V MEDIÆVAL COINAGES OF NORTHERN AND CENTRAL INDIA TILL THE MUHAMMADAN CONQUEST