Assam, Octagonal (different shape) Silver Rupee (trial strike), 11.21g, Pramatta Simha (Siu-ning-pha) (1744-1751), Sk. 1667, Assamese legends, Obv: Sri Sri Hara/ Gauri Charana/ Kamala Madhu/karasya, Rev: Sri Sri Svarga/Deva Pramatta/ Simha Nrpasya/ Sake 1667, lion with tail down at bottom running left, Reverse die perfectly struck at 6 o'clock. Ex I.K.Kathotia collection, plate coin. (A.Mitra. refer pg 45, RB. N8.1 type unlisted). Almost Mint State, Unique. ( EX Bombay Auction No. 20, Lot No.121 ).