Watch List notes:

Roman Empire. Septimius Severus. Denarius AR 209 AD, Rome.
Obv. SEVERVS PIVS AVG - laureate head to right.
Rev. P M TR P XVII COS III P P - Neptune standing to left, foot on globe and holding trident.
Catalogue references: RIC(IV).228 - BMCRE.3 - RSC.529
3,52 g - 19,5 mm - Very Fine / TTB