Decimal Day weights and measures.) Around the time of Decimalisation Day, "Decimal Adders" and other converters were available to help people convert between the old and new coins. The following is a table showing conversions between the decimal and pre-decimal systems. All pre-decimal coins (except for certain non-circulating coins such as crowns, sovereigns, and double florins which were explicitly excluded from demonetisation) are now no longer legal tender. Public outcry at the proposed demise of the old sixpence (6d), worth exactly p and originally slated for early withdrawal, postponed its withdrawal until June 1980. Shillings and florins, together with their same-sized 5p
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