Mysore, Tipu Sultan, Patan (Seringpatan) Mint, Silver Double Rupee (Sultani) (Oval shape), AH 1200/4 RY, Hijri era, cyclic year Dalu (the Aquarius), Obv: deen-e-Ahmad dar jahan roshan ze fath Haidar ast, zarb Patan, saal dalu, sana 1200 hijri & initial persian letter 'HE' for Haidar, Rev: huwas sultan-ul-waheed al adil, suwem bahari saal dalu, sana 4 julus, 23.85g, 37.00mm, (KM # 127), choice extremely fine, beautiful rossetts on bothsides, Extremely Rare.