Billon as well as pure copper coins of the later years of the reign bear the names of the two Khalifs. About twelve types[55] of copper money were minted, most of them small and without special interest. Between the years A.H. 730-732 (1329-1332) the Sultan attempted to substitute brass and copper tokens (Pl. VIII, 9) for the silver and billon coinage. In order to secure the success of this experiment, he caused such appeals as the following to be inscribed on them: “_He who obeys the Sultan obeys the Compassionate_”; and it is significant that one of these tokens bears an inscription in Nāgarī, the sole example of the use of this script by the orthodox Sultan. These coins were struck at seven different mints, including Dhār in Mālwā, but the scheme was doomed because of the ease with which forgeries were fabricated; they were made in thousands; the promulgation of the edict which accompanied the issue “turned the house of every Hindu into a mint,” says a contemporary historian. The Sultan thereupon withdrew the issue, and redeemed genuine and false alike at his own cost. [55] Excluding the Forced Currency types. III. THE COINAGE OF DEHLĪ, FROM 1351 to 1526 (A.H. 752-932) It has been suggested by historians that the disastrous consequences of Muḥammad bin Tug̱ẖlaq’s experiment with the currency were in part responsible for the disintegration of his wide empire. This is improbable. His successor, Fīroz Shāh Tug̱ẖlaq, undoubtedly inherited a full treasury, as the vast constructional works he undertook during the thirty-seven peaceful years of his reign prove. But he was no soldier; and the governors of the wealthy Deccan province probably experienced little interference from the distant Court at Dehlī. Daulatābād was an almost impregnable fort, and, doubtless, well stored with munitions. Consequently truculent Viceroys had the sinews of rebellion ready to their hand. The temptation was too great to be resisted. Other governors followed the lead given in the Deccan; the finest provinces rapidly fell away during the disturbed rule of Fīroz’s successors and became independent kingdoms; so that in a few years the dominions of the Dehlī kings were reduced to little more than the district round the city. Their discomfiture was completed when, in 1398, the plundering hosts of Tīmūr swept down through Hindustān and occupied the capital. Under these conditions the coinage naturally degenerated.