Sestertius Sestertius The sestertius (plural sestertii), or sesterce (plural sesterces), was an ancient Roman coin. During the Roman Republic it was a small, silver coin issued only on rare occasions. During the Roman Empire it was a large brass coin. The name "sestertius" means "two and one half", referring to its nominal value of two and a half "asses" (a bronze Roman coin, singular "as"), a value that was useful for commerce because it was one quarter of a denarius, a coin worth ten "asses". The name is derived from "semis", "half" and "tertius", "third", in which "third" refers to the
Ten pence (Irish coin) a pound being the same as the previous florin. It retained the exact design and dimensions (except denomination) of the florin coin, introduced to the Irish Free State in 1928. Some florin coins remained in circulation until 1994, when it was decided to reduce the size of the ten pence coin. The original ten pence weighed and had a diameter of . Its size became a problem after inflation reduced the coin's value, and it was last minted in 1986. In 1993 a replacement was struck at diameter and . This new coin featured a salmon, but moved the location