Delhi Sultanate, Abu Bakar Shah (AH 791-793/1389-1390 AD), Billon 5/6 Tanka, AH 792, In the name of Caliph Abu' Abd Allah, Obv: abu bakr shah bin zafar bin Firuz Shah sultani, Rev: al-khalifa abu'abd allah khulidat khilafatuhu, 8.73g, 18.00mm, (G&G # D565), choice extremely fine, Scarce.