Carthagonova in Hispania, 37- 38 AD, Gaius, As, RPC 185.

Carthagonova in Hispania (Colonia Urbs Iulia Nova Cathago, todays Cartagena), Gaius (called Caligula, 37-41 AD.), issued by duoviri quinquennalis Cnaeus Atellius Flaccus and Cnaeus Pompeius Flaccus, struck ca. 37 - 38 AD.,
Æ As (26-27 mm / 10,94 g),
Obv.: C CAESAR AVG GERMANIC IMP P M TR P COS , laureate head of Caligula facing right.
Rev.: CN ATEL FLAC CN POM FLAC II VIR QVINC / SAL - AVG , female head (of Caesonia or Antonia or Livia or simply Salus ?) facing right.
RPC I, 97, 185 (81 pieces listed) ; SNG Cop. 503 ; Alvarez Burgos (1992), 95, 471 ; Villaronga (NAH) 1127 .

Colonia Urbs Iulia Nova Cathago (modern Cartagena) is a seaport in southeast Spain on the Mediterranean Sea, in the autonomous community of Región de Murcia.
Cartagena was founded about 230 BC by Carthaginian general Hasdrubal as Qart Hadast, Punic for "new city". Hasdrubal extended the newly acquired Carthaginian empire in Iberia by skillful diplomacy, and consolidated it by the foundation of Qart Hadast in an excellent haven as the capital of a new province. Hannibal got silver from the mines there to carry on the war against Rome.
When the city was taken by the Roman general Scipio Africanus Major in 209 BC it was renamed as Carthago Nova, Latin for "New Carthage". The city gave its name (without the 'new') to the youngest province in the Hispaniae diocese, in the form of an adjective: Carthaginiensis.
Under roman reign the city started to issue bronze coins in the middle of the first century BC. During Caligula´s reign the city struck its last issues (this type and a corresponding semis).

The portrait on the reverse has been traditionally identified as that of Caesonia, Caligula’s fourth wife. It seems, however, that this coin was issued well before he married her, and even before his divorce from his third wife Lollia Paulina. Recent investigations suggest that the portrait is of Caligula’s grandmother Antonia: at this time her health was precarious so that identifying her with Salus would have served as a wish for her speedy recovery.