Watch List notes:

Antoninus Pius as Caesar. 138 AD. Sestertius, 27.00g (5h). Rome, 25 February-10 July 138 AD. Obv: IMP T AELIVS CAES - AR ANTONINVS Bare head right. Rx. T - RIB POT - COS - DES II around, PIE - TAS and S - C across field, Pietas standing left by altar, raising right hand and holding box of incense. BM 1951. Cohen 610 (4 Fr.). RIC 1093. Strack 908, citing only two specimens, in BM and Paris. Considerably rarer with date COS DES II rather than just COS in reverse legend. Small area of flat strike on portrait, otherwise Good EF