Florin (British coin) piece was issued in 1992, after which the old florin was demonetised on 30 June 1993. The florin, the first decimal coin, was the last coin in general circulation just prior to decimalisation to be withdrawn. Florin (British coin) The British florin, or two shilling coin, was issued from 1849 until 1967, with a final issue for collectors dated 1970. Valued at one tenth of a pound (24 old pence), it was the last coin circulating immediately prior to decimalisation to be demonetised, in 1993, having for a quarter of a century circulated alongside the ten pence piece, identical in
One pound (British coin) a new 12-sided design, was introduced in 2017, the earliest dated as 2016. The coin has a 12-edged shape, similar to the pre-decimal brass threepence coin; it has roughly the same size as the previous £1 coin, and is bi-metallic like most £2 coins. The new design is intended to make counterfeiting more difficult, and also has an undisclosed hidden security feature called "iSIS" (Integrated Secure Identification Systems), thought to be a code embedded in the top layer of metal on the obverse of the coin, visible only under a specific wavelength of ultraviolet light. Current two-pound coins, being bi-metallic