Watch List notes:

Septimius Severus. AD 193-211. AV Aureus (20mm, 7.27 g, 5h). Rome mint. Struck AD 197-198. L SEPT SEV PERT AVG IMP X, laureate, draped, and cuirassed bust right / P M TR P VI COS II P P, Sol, naked, except for cloak over arm and radiate crown, standing facing, head left, raising his right hand, cradling a whip with his left arm. RIC IV – (cf. 117 for denarius of this type); Calicó 2501a (same obv. die); BMCRE – (cf. 263 for denarius of this type); Biaggi –. Lustrous, edge marks, possibly removed from jewelry. Good VF. Extremely rare, only one (the NAC specimen) in CoinArchives.