28mm Brass Dupondius, 13.7 grams
O: IMP CAES NER TRAJIANO OPTIMO AVG GER DAC PM TRP COS VI PP
R: SENATVS POPVLVSQVE ROMANVS, in two lines FORTRED S-C, Fortuna seated left holding rudder & cornucopiae
Similar to a brass sestertius RCV 3193 we believe this to be a somewhat scarcer type of brass dupondius