1/2 As With caduceus

Heavy cast bronze of this size belongs to the earliest phase of Roman-influenced monetary production in central Italy, when Rome's own aes grave system was driving neighboring communities to adopt compatible weight standards. The caduceus as a type mark on fractional aes grave is a known but poorly understood convention — it appears across multiple issuing authorities and has frustrated attempts to assign these pieces to a single city with confidence, hence the persistent "uncertain" attribution that has survived generations of scholarship including Haeberlin's exhaustive 1910 corpus.

At over 135 grams for a half-unit, this piece adheres to the heavier end of the uncial reduction sequence before successive weight drops through the Second Punic War rendered such massive bronzes obsolete within decades.