Watch List notes:

ANCIENT COINS, ROMAN, Mint of Rome unless otherwise stated, Caracalla (AD 198-217), Silver Denarius, struck AD 206, ANTONINVS PIVS AVG, laureate head facing right, rev IOVI in exergue, SOSPITATORI, Jupiter standing within tetrastyle temple, holding thunderbolt and sceptre, 3.29g, 12h (RIC 156; BMC 507; RCV 6810). Very fine to good very fine and rare.
This issue is the only occasion that Jupiter Sospitator appears on coinage.

Estimate: £350-400