Ratna Manikya, Silver Tanka, 10.54g, Broad flan, SE1386, Bengali legend on both sides, Obv: Lion facing left, “Sri Sri Durga Radha Napta Vijaya Ratnapure Sake 1386” around, Rev: “Sri Narayana / Charana Para/ Sri Sri Ratna Ma/nikya Deva” in single square (R&B# 17). About extremely fine, extremely rare.