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
Saint Helena pound shillings, and each shilling into 12 pence. This was supplemented by occasional local issues of paper currencies. One coin, a copper halfpenny, was also struck specifically for use in the islands in 1821, which intermingled with British coinage. The notes were denominated in pounds and shillings and valued to the British pound at par. Prior to February 1961, the South African pound, which was then equal in value to sterling, was also accepted on the island, but this stopped with the introduction of the new decimal South African rand, such that one rand was worth only ten shillings sterling. In