
thumb|right|300px|A quinarius of 90 BC of L. Calpurnius Piso Frugi: Obv.: head of Roma right in a winged helmetq; V (asses) for quinarius. Rev.: Dioscuri riding right, stars above heads; ROMA below.
thumb|right|300px|A quinarius of 90 BC of L. Calpurnius Piso Frugi: Obv.: head of Roma right in a winged helmetq; V (asses) for quinarius. Rev.: Dioscuri riding right, stars above heads; ROMA below.
The quinarius (plural: quinarii) was a small silver Roman coin valued at half a denarius.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).