As - Antoninus Pius (TR POT XXIIII COS IIII S C; Aeternitas)
Obverse
Head of Antoninus Pius, laureate, right.
Lettering: ANTONINVS AVG PIVS P P
Reverse
Aeternitas, draped, standing, front, head left, holding caduceus in right hand and phoenix on globe in left.
Lettering: TR POT XXIIII COS IIII S C
Technical Details
Obverse Lettering
ANTONINVS AVG PIVS P P
Reverse Lettering
TR POT XXIIII COS IIII S C
Comments
Mass varies: 8.916–14.183 g;
Example of this type:
Münzkabinett der Universität Göttingen
Source:
Online Coins of the Roman Empire (OCRE)