The first evidence are gold coins discovered in Balkh dating from the mid-4th century. The Kushano-Sasanian ruler Varahran during the second phase of his reign, had to introduce the Kidarite tamga () in his coinage minted at Balkh in Bactria, circa 340-345. The tamgha replaced the nandipada symbol which had been in use since Vasudeva I, suggesting that the Kidarites had now taken control, first under their ruler Kirada. Then ram horns were added to the effigy of Varahran on his coinage for a brief period under the Kidarite ruler Peroz, and raised ribbons were added around the crown ball under the Kidarite ruler Kidara. In effect, Varahran has been described as a "puppet" of the Kidarites. By 365, the Kidarite ruler Kidara I was placing his name on the coinage of the region, and assumed the title of Kushanshah. In Gandhara too, the Kidarites minted silver coins in the name of Varahran, until Kidara also introduced his own name there.