These seem to be the first known representations of Vedic deities on coins, and they display early Avatars of Vishnu: Balarama-Sankarshana with attributes consisting of the Gada mace and the plow, and Vasudeva-Krishna with the Vishnu attributes of the Shankha (a pear-shaped case or conch) and the Sudarshana Chakra wheel. According to Bopearachchi, the headdress is actually a misrepresentation of a shaft with a half-moon parasol on top (chattra), as seen in later statues of Bodhisattvas in Mathura. It is therefore thought that sculptures or images, predating the coins but now lost, served as models to the engravers.