See also: semuncia. The Latin: semuncia was an ancient Roman bronze coin valued at one twenty-fourth of an Latin: [[as (coin)|as]], or half an Latin: [[uncia (coin)|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 Latin: [[caduceus]]. It was issued until about 210 BC, at about the same time as the Latin: [[denarius]] was introduced.