Assam Kingdom, Siva Simha, Silver Rupee, SE 1637, Without Queen name, Obv: Assamese legend "Sri Sri Hara/Gauri Pada/mbuja Madhuka/rasya, Rev: Assamese legend "Sri Srimat Svarga Deva Si/va Simha Nrpasya/Sake 1637, Lion below running right, (RB # G5.1), graded & slabbed by NGC as AU55.