INDIA, Islamic Sultanates. Delhi. Muhammad bin Farid. AH 837-849 / AD 1434-1445. AR Tanka (23mm, 11.10 g, 11h). Dated AH 804 = 840 (AD 1436/7). Name and titles of Muhammad bin Farid / fi-zaman legend; AH date in exergue. CIS D671; Rajgor Type 1480; ICV 2574. VF, toned, slight porosity. Very rare.