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This is an ancient Roman Copper As, of Emperor Antoninus Pius, minted at Rome between 149 - 150 AD
Obverse: IMP CAES T AEL HADR ANTONINVS AVG PIVS PP, "Supreme commander (Imperator), Caesar, Titus Aelius Hadrianus Antoninus Pius, emperor (Augustus), father of the nation." Head of Antoninus Pius, laureate, right.
Reverse: TR POT XIIII COS IIII S-C / ANNONA AVG, "Holder of tribunician power for the 14th time, consul for the fourth time. Imperial grain supply. Decree of the senate." Annona, draped, seated, left on low seat, holding two corn-ears in extended right hand over modius with corn-ears and cornucopiae in left.
DENOMINATION: As As (1/16 of a denarius)
DATE: 138 - 161 AD (minted at Rome between 149 - 150 AD)
SIZE: 25mm diameter
WEIGHT: 10.96 grams
ATTRIBUTION: RIC III, 880; Cohen 49.
PROVENANCE: ex collection JMAL (acquired between 1970 and 2000)