Watch List notes:

Septimius Severus, 193-211. Denarius (Silver, 18 mm, 1.58 g, 12 h), Rome, 206. SEVERVS PIVS AVG Laureate head of Septimius Severus to right. Rev. P M TR P XIIII COS III P P Annona standing left, holding in right hand grain ears over modius to left, and cornucopia in right. BMC 489. Cohen 476. RIC 200. Darkly toned. Extremely low weight, but coins of this emperor have a large range of weights, otherwise, about very fine.
From the B.L. collection, Switzerland.