194-195 AD - SEPTIMIUS SEVERUS AR denarius

obv: L.SEPT.SEV.PERT.AVG.IMP.IIII (laureate head right)
rev: APOLLINI AGVSTO (sic!) (Apollo standing left, holding patera and lyre)
ref: RIC IVi 40 (S), C.42 (3frcs)
mint: Rome
2.30gms, 17mm
Scarce

The reverse legend is APOLLINI AGVSTO instead of APOLLINI AVGVSTO.
It was in memory of the veneration rendered by Augustus to Apollo, that this coin was struck, in which the name itself of Augustus is given to that deity, who is represented in the same costume and attitude. (Numiswiki)
See also my Antoninus Pius AE As (RIC III 824)