Ratna Manikya, Silver Tanka, 10.61g, SE 1386, Bengali legend on both sides, Obv: Lion facing left, two crosses above within circle, "Sri Sri Durga Radha Napta Vijaya Ratnapure Sake 1386" around, Rev: "Sri Narayana / Charana Para/ Sri Sri Ratna Ma/nikya Deva" in double square (R&B# 18). Extremely fine, extremely rare.