INDIA, Islamic Sultanates. Jaunpur. Shams al-Din Ibrahim Shah. AH 804-844 / AD 1402-1440. BI Tanka of 80 rati (19mm, 9.41 g, 1h). Dated AH 839 (AD 1435/6). Shams al-Din Ibrahim Shah and invocation / CIS J6; Rajgor Type 2703. Iridescent toning, light porosity. Good VF.