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
Threepence (Irish coin) Threepence (Irish coin) The threepence () or 3d coin was a subdivision of the pre-decimal Irish pound, worth of a pound or of a shilling. literally means "half ", the being a sixpence coin worth about the same as the Spanish (a quarter of a peseta). As with all other Irish coins, it resembled its British counterpart, as the Irish pound was pegged to the British pound until 1979. Originally it was struck in nickel and was very hard-wearing. In 1942, as nickel became more costly, the metal was changed to cupronickel of 75% copper and 25% nickel. The coin