176 KUSHAN KINGS coins issued by kings using the names of Kanishko and Vasu (Deva). Gold coins of the Vasu Deva type continued to be struck in Gandhara by chiefs of the original Yue-chi stock, who are usually known as the Lesser Kushans. The so-called Kushano-Sassanian pieces, the result of Sassanian invasions of the Kabul Valley, are found on the Sistan side, and were probably struck in the fourth and fifth centuries of our era. A copper coinage, very much debased, but undoubtedly designed on the old Kushan model, persisted in Kashmir from the sixth to the sixteenth century. The widest divergence of opinion exists as to the position in time, and the sequence of the Kadphises and Kanishka groups of Kushan kings. Numismatists have usually had no hesitation in placing the Kadphises group before the Kanishka group, and I have followed this convention. For a typical presentment of this view see H. Olclenberg's 'The Era of Kaniska', Journal of the Pali Text Society, 1912. Mr. Vincent Smith—I. M. Gat,, vol. i, p. 64—holds that the following chronology of accessional dates is approximately correct: Kadphises I A. D. 45 or 50. Kadphises II (Wema Kadphises) A. D. 85. Kanishka A. D.I 20. Huvishka A. D. 150. Vasu Deva A, D. 180. No less than eleven theories have been broached regarding the date of Kanishka. They carry the initial year in which the Kushan inscriptions are dated over a period ranging from 58 B. c. to A. D. 278 —see V. A. Smith, 'The Kushan Period of Indian History', J.E. A.S., 1903, and E. D. Banerji", 'The Scythian Period of Indian History', Indian Antiquary, 1908. Dr. J, F. Fleet holds that Kanishka established the era dating from 58 B, c., which subsequently became known as the Vikrama era. This view involves the assumption that the Kanishka group preceded the Kadphises kings* It is only a year ago that Mr. J. Kennedy in his paper, 'The Secret of Kanishka*, J.B.A.S., 1912, has with much learning and ingenuity advocated this theory afresh, A reply by Dr. Thomas, Librarian of the India Office, and the subsequent discussion, are reported in the Journal of the Royal Asiatic Society for the present year, 1913. The entire ground is fully covered by these contributions, to which I refer the reader. The final decision still awaits the excavator's find. The copper issues of the Kushans are strongly represented in this Collection. The Buddha type of Kadaphes makes its appearance In a Museum Catalogue for the first time, and very few of the copper types of Kanishka and Huvishka are missing. There are four specimens