Æ sestertius, 31mm. M ANTONINVS [             ] Laureate draped bust right.  R. [IMP VI COS III] Jupiter seated left, holding Victory and sceptre, [SC in ex].  RCV ii, 4975.  Bold portrait, some encrustations of hard green and red patina, AF/fair

The information with this coin from the Albert Reeves collection says that it was bought for £6 on 2 Feb. 1991 from A Oscroft, graded fair.