Roman silver hoard coin

Faustina the elder, wife of Antoninus Pius and mother of Faustina the younger. Posthumous issue by Antoninus pius, Faustina died 141 so it dates between 141-160. Reverse is too profoundly encrusted to determine type, although it might have the legend AVGVSTA (if so, the photo is upside-down) otherwise, it’s a legend ending in “AVG” and could be any of literally dozens of types.

Weight: 3.17 g
Diameter: 15 mm