Watch List notes:

Antoninus Pius and Marcus Aurelius Caesar (138-161). AR Denarius (16mm, 3.09g, 6h). Rome, c. 141-3. Laureate head of Antoninus Pius r. R/ Bare head of Marcus Aurelius r. RIC III 417a; RSC 15. Dark patina, porosity, near VF
Estimate: 50 GBP