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
Twopence (British pre-decimal coin) silver coin being minted. To thwart the further issuance of private token coinage, in 1817 an Act of Parliament was passed which forbade the manufacture of private token coinage under very severe penalties. A short-lived twopence denomination in silver was also produced, with circulation issues in 1817, 1818 and 1820, after which silver twopence were only issued as Maundy money. In 1857, a survey by the Royal Mint found that around one-third of all copper coinage was worn or mutilated, often by advertisements. A couple of years later Thomas Graham, the Master of the Mint, convinced William Ewart Gladstone, then