Watch List notes:

Antoninus Pius. Denarius; Antoninus Pius; 138-161 AD, Rome, 156 AD, Denarius, 3.38g. Cf. BM-856, C-979, and RIC-252. Obv: ANTONINVS AVG PI - VS P P TR P XIX Head laureate r. Rx: IMP - II - COS - IIII Pax standing l. holding branch and cornucopia. Ex Curtis L. Clay Collection; ex Savoca, eBay, 22 August 2018. A hitherto unknown legend form, apparently the earliest to show the title IMP II which Antoninus added to his coinage in 156-8 AD (TR P XIX-XXI). Our coin could be a military issue or an ancient imitation, but it seems very likely to have taken over its new legend, with TR P XIX on the obverse and IMP II COS IIII on the reverse, from an official issue that was only struck for a very short time and therefore in very low volume.Crude portrait. vritually ms