Watch List notes:

Antoninus Pius caesar, 25th February – 10th July 138. Aureus 138, AV 7.26 g. IMP T AEL CAES – ANTONINVS Bare head r. Rev. TRIB POT – CO – S Pietas veiled, standing r. holding box of incense over altar; in field, PIE – TAS. C 597. BMC Hadrian 1017. RIC Hadrian 454a. Calicó 1596.
Rare. A superb portrait of masterly style and a lovely reddish tone. Extremely fine

Ex Bourgey sale 18 November 1957, 306.