Watch List notes:

Antoninus Pius. AD 138-161. Æ Sestertius (31mm, 24.51 g, 12h). Rome mint. Struck AD 145-147. Laureate head right / Securitas seated left, holding scepter and propping head on hand. RIC III 764; Banti 115 var. (break in obv. legend). Good VF, brown surfaces, areas of green encrustation.