^{page 254 note 1} My best thanks are due to Mr. Percy H. Webb, an authority on mints of the third century, who has very kindly given me the benefit of his advice and criticism.

^{page 254 note 2} Aes is used as a convenient if inexact term for base metal coinage, whether copper, brass or bronze.

^{page 255 note 1} Cp. Num. Chr. 1907, pp. 356 ff., F. A. Walters on a find of Roman bronze at Croydon.

^{page 255 note 2} Cp. Mowat in Num. Zeitschrift, 1909, pp. 88 ff; the type MONETA AVG. S.C. appears for the time on aes of Domitian.

^{page 255 note 3} B.M.C. Empire i, pp. lviii ff.

^{page 256 note 1} Possibly not at Antioch, as that city had incurred his severe displeasue. The attribution of some denarii to Alexandria is due, I believe, originally to Signor Laffranchi of Milan.

^{page 256 note 2} As Kubitschek in Num. Zeitschrift, 1914, pp. 191 ff., appears to suggest.

^{page 256 note 3} There is an aureus of this class in the B.M. with rev. AEQVITATI AVGG., Aequitas 1, with scales and cornucopiae.

^{page 257 note 1} That is, of his coins as Augustus : as Caesar, he struck with Severus at Rome.

^{page 258 note 1} These aurei have been frequently doubted. The question is still ‘sub judice.’

^{page 258 note 2} A large hoard of Antoniniani, buried in the reign of Trajan Decius and recently found at Plevna in Bulgaria, is at present being studied and seems likely to extend and correct our knowledge of the mints of this period.

^{page 259 note 1} To it should belong the very rare aurei of Saturninus (A.D. 280).

^{page 259 note 2} The mint is beyond all question shared by Gallienus and Postumus—the lion's share falling to Gallienus. The explanation given in the text is probably near the truth.

^{page 260 note 1} Victorinus and Tetricus also strike at another mint, the site of which has not yet been determined.

^{page 260 note 2} We find on coins of Tacitus of Gallic mintage a mark A, which seems to stand for a mint.

^{page 260 note 3} The coins of Carausius, which have RSR in exergue, are probably among his earliest issues ; their mint is uncertain.