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
Penny (British pre-decimal coin) 1858) until the end of the copper penny issue in 1860. Copper pennies were issued for all years between 1839 and 1860 except 1840, 1842, 1850, and 1852. The reverse of the coin for the whole of this period was similar to the William IV issue, with a seated right-facing Britannia holding a trident, except that most years the head of the trident was ornamented; the inscription read . The reverse of the bronze version of the coin, designed by Leonard Charles Wyon, is a seated Britannia, holding a trident, with the words to either side. Issues before 1895 also