Watch List notes:

Antoninus Pius as Caesar. Sestertius; Antoninus Pius as Caesar; 138 AD, Rome, Sestertius, 27.59g. Cf. RIC-2772 (R3), pl. 198. Obv: IMP T AELIVS CAE - SAR ANTONINVS Bare-headed, draped bust r., seen from side. Rx: [PIETA]S in exergue, TRIB POT - COS DES II on l. and r., S - C across field, Pietas standing l., dropping incense on altar at her feet and holding incense box with other hand. Ex Curtis L. Clay Collection; ex eBay, March 2005, tip from Frans Diederik. Possibly unpublished because of the date COS DES II and the emperor's draped bust; RIC-2772 is similar, but has PIE - TAS across field rather than in exergue.. VF / Fine