Denarius - Septimius Severus (SPQR OPTIMO PRINCIPI)
Obverse
Head of Septimius Severus, laureate, right.
Lettering: IMP CAE L SEP SEV PERT AVG COS II
Reverse
Septimius Severus, in military attire, on horse galloping right, holding spear in right hand.
Lettering: SPQR OPTIMO PRINCIPI
Technical Details
Obverse Lettering
IMP CAE L SEP SEV PERT AVG COS II
Reverse Lettering
SPQR OPTIMO PRINCIPI
Comments
Mass varies: 2.96–3.68 g;
Diameter varies: 16.6–19 mm;
Example of this type:
American Numismatic Society (ANS)
Source:
Online Coins of the Roman Empire (OCRE)