Caracalla (198-217). AR Denarius, 198-199 AD. Obv. IMP CAES M AVR ANTON AVG. Laureate, draped and cuirassed bust right. Rev. SECVRIT ORBIS. Securitas seated right by altar, propping head on right hand and holding sceptre. RIC IV 22. 3.23 g. 21.00 mm. Scarse. Superb, brilliant and lightly toned. EF.