Ancient Roman gold aureus of emperor Nero / Jupiter the Guardian

This is an ancient Roman gold Aureus of emperor Nero, struck in Rome between 65 - 66 AD 

Obverse:  NERO CAESAR AVGVSTVS; "Nero Caesar, emperor (Augustus)" laureate head of Nero facing right

Reverse:  IVPPITER CVSTOS "Jupiter, the guardian"  Jupiter seated left with thunderbolt and sceptre.

Jupiter the Guardian (represented by the inscription “Custos” – one who preserves and saves) was attributed with the intervention that saved Nero from assassination in 64 AD (see "A Conspiracy to Assassinate the Emperor Nero"). 

A very nice coin with a good portrait and full titles.

One of the 12 Caesars Aurei

CULTURE: ROMAN

DENOMINATION: Aureus

MATERIAL: Gold

DATE: 54 - 68 AD (this coin minted between 65-66AD

SIZE: 18mm dia

WEIGHT: 7.16 grams

ATTRIBUTION:   RIC 52, Cohen 118, BMC 67 (RCV 2000 Edition) Number 1930

PROVENANCE: Private collection. Cologne, Germany. Previously in a Swiss private collection.