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
Five guineas (British coin) Five guineas (British coin) The British Five Guinea coin was a machine-struck currency produced from 1668–1753. It was a gold coin 37 millimetres in diameter and weighing between 41 and 42 grams. Although the coin is now known as the "five guinea" piece, during the 17th and 18th centuries it was also known as a five-pound piece, as during the reign of Charles II a guinea was worth twenty shillings — until its value was fixed at twenty-one shillings by a Royal Proclamation in 1717 the value fluctuated rather in the way that bullion coins do today. This denomination shows