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
Two guineas (British coin) Two guineas (British coin) What is nowadays known as the Two Guineas coin was first minted in 1664, in England, when it had a nominal value of forty shillings and it was known as a forty-shilling piece, then it was later called a double-guinea or two guinea piece, worth forty-two shillings after the Proclamation of 1717 finally settled the value of a guinea. The term "guinea" indicates the source of the gold used to strike the coin, i.e. from west Africa. For most of its period of production the coin weighed 16.7 - 16.8 grams and was 31-32 millimetres in