Delhi Sultanate, Firuz Shah Zafar (AH 791/1389 AD), Billon 1/3 Tanka, With the name of Caliph Abu' Abd Allah, Obv: Firuz Shah zafar Sultani, Rev: al-khalifa abu 'abd allah khulidat khilafatuhu, 3.46g, 13.5mm, (G&G # D554), about extremely fine, Scarce.