Watch List notes:

Antoninus Pius augustus, 138 – 161. Aureus 147-148, AV 7.31 g. ANTONINVS AVG – PIVS P P TR P XI Laureate head r. Rev. PRIMI / DECEN / COS IIII within oak wreath. C 669. BMC 630 note. RIC 171b. Biaggi 752 (this coin). Calicó 1610 (this coin).
Very rare and in exceptional condition for the issue, among the finest
specimens in private hands. Extremely fine

Ex M&M 18, 1954, 693 and NAC 49, 2008, B.d.B, 246 and New York XXXII, 2014, 22 sales. From the Biaggi, Aurora and Retired Banker collections.