Just a nice looking coin celebrating the victorious, happy emperors Septimius Severus and Caracalla. Septimius Severus, Denarius, VICTORIAE AVGG FEL AR Denarius Septimius Severus Augustus: 193 - 211AD Issued: 199AD 19.0 x 18.5mm 3.33gr O: L SEPT SEV AVG IMP XI PART MAX; Laureate head, right. R: VICTORIAE AVGG FEL; Victory flying left, holding open wreath, before her, a shield, set on cippus. Rome Mint RIC 144b; RSC 719cf.; Sear 6381; BMC 139. Aorta: 522: B3, O45, R360, T214, M4. cichosgladiator11 372143302604 11/28/17 12/24/17 Link to the whole collection: http://www.forumancientcoins.com/gallery/thumbnails.php?album=6295
FEL is short for Felicit I believe which means happy or good. See FEL TEMP REPARATIO for later uses of the word FEL in that context. I could be wrong.
Several philosophers at least as far back as Solon have expressed the thought that you must not call a man happy until he has had a happy death. This did not even work so well for Septimius. He died after advising his sons to get along with each other but within the year one had killed the other foiling his plan for them to rule Rome jointly. He might have been happy at the moment of his death because he would count the victories commemorated by this coin but his grand plan turned out quite the opposite.