The earliest known coins are those of Śuklenmung (1539-52), but these and the money of his five successors were struck for ceremonial occasions, probably only at the coronation, and a yearly coinage was first introduced by Rudra Siṁha. The strange octagonal shape of the coins is said to owe its origin to a statement in the Yoginī Tantra, which describes the Ahom country as octagonal. Some of the smaller coins are, however, round, and Śiva Siṁha, for a coin of Ś. 1651, on which he associates the name of his queen, Pramatheśvarī, and Rājeśvara Siṁha (1751-69), for two of his issues, adopted the square Mug̱ẖal form and style with legends in Persian. The inscription on Śiva Siṁha’s coin is as follows: obverse, _Shāh Sheo Singh struck coin like the sun by order of the Queen Pramatheśvarī Shāh_; reverse, _In the year 15 of the fortunate reign at Gargāon 1651_ (= A.D. 1729). For this the Nūr Jahān issues of Jahāngīr were obviously the model. With the exception of a coin of Śuklenmung, all gold and silver was struck to a standard of 176 grains, and half, quarter, eighth, and even smaller fractional pieces were minted. Several of the earlier Rājas employed the Ahom language and script for their legends. Sanskrit written in the Bengālī script was first used by Sūrya Nārāyaṇa (1611-49). Pramatta Siṁha (1744-51) and Rājeśvara Siṁha employ both, but after the coronation ceremony of the latter Sanskrit alone was used. The legends, in either script, are always enclosed within dotted borders (Pl. XII, 8). These thick rather solid-looking coins, though attractive on account of their unusual shape, are entirely without artistic merit; they ceased to be minted with the cession of Assam to the British in 1826. The broad round silver pieces of the Rājas of Jaintia (Jayantāpura) of the eighteenth century, and the coins of the hill state of Tipperah, bear legends similar in style to the Assamese Sanskrit coins, and, like them, are dated in the Śaka era. The dates on the Ahom coins of Assam are reckoned according to the Jovian cycle of sixty years. II. THE COINAGE OF NEPĀL The considerable Mug̱ẖal influence exhibited in the modern coinage of the Malla kings of Nepāl, which starts in the early years of the seventeenth century, finds expression in the native legend which affirms that Rāja Mahendra Malla of Kāthmāṇḍū obtained permission to strike coins from the Dehlī court. Although none of his money has come to light, the story gains some support from the weight of the early Nepalese coins, which are all half-rupees, and from a curious piece of Pratāpa Malla of Kāthmāṇḍū (1639-89), which imitates Jahāngīr’s coinage, even adopting fragments of the Persian inscription.