Ancient Roman Silver Denarius of Emperor Antoninus Pius / Thunderbolt

This is an ancient Roman Silver Denarius, of Emperor Antoninus Pius, minted at Rome in 145 - 161 AD 

Obverse:  ANTONINVS AVG PIVS PP, "Antoninus, emperor, Pius, father of the nation" laureate head right

Reverse: COS IIII, "Consul for the fourth time" Thunderbolt on a decorated altar

A nice toned example in VF condition

CULTURE: ROMAN

DENOMINATION: Denarius

MATERIAL: Silver

DATE: 138 - 161 AD (minted at Rome in 145 - 161 AD)

SIZE: 17.3mm diameter

WEIGHT:  3.3 grams

ATTRIBUTION: (RCV 2000 Edition) Number 4079 RIC 137, RSC 345, BMC 536

PROVENANCE: Formerly in a private collection. London.