Semuncia

{{Short description|Ancient Roman coin}}

{{see wt|semuncia}}

File:Mercury Semuncia 200BC.jpg

The {{lang|la|semuncia}} was an ancient Roman bronze coin valued at one twenty-fourth of an {{lang|la|as}}, or half an {{lang|la|uncia}}, produced during the Roman Republican era. It was made during the beginning of Roman cast bronze coinage as the lowest valued denomination.

The most common obverse types were a head of Mercury or an acorn, and the most common reverse types were a prow or a {{lang|la|caduceus}}.{{sfn|Sear|2000|pp=177–178, 188–189, 257–258}} It was issued until about 210 BC, at about the same time as the {{lang|la|denarius}} was introduced.