An Antoninus Pius sestertius, marked "ANTONINVS AVG PIVS P P TR P COS" on obverse. On the reverse, Apollo stands facing, with his head left and holds a lyre in his left hand and a patera in his right hand. Marked with "APOLLINI AVGVSTO S.C." on reverse.
All proper markings, checked by the American Numismatic Society
Sestertius (Roman mint coinage)
32mm diameter, 25.71g