This is the first silver issue of the Ahom rulers of Assam and it is in the octagonal shape which became standard for Assamese coins until the end of the series, with only a few exceptions. The legends do not have the ruler's name but have an invocation to Hari Hara, a syncretic deity combining both Vishnu and Shiva. It was towards the end of Jayadhvaja's reign that a disastrous Mughal invasion under Mir Jumla took place, from which few of the Mughal soldiers returned alive. Before the Mughals retreated the king signed a treaty with them and agreed to pay them tribute. The coins of the first few Assames coin-issuing rulers all have fixed dates.