Florin (Irish coin) Florin (Irish coin) The florin (2s) () coin was a subdivision of the pre-decimal Irish pound, worth of a pound. It was more commonly known as the two-shilling coin. The original minting of the coin from 1928 until 1943 contained 75% silver, a higher content than the equivalent British coin. It is believed that this was done so that the new currency would not be seen as a poor substitute to the British currency which circulated alongside. The silver coins are quite noticeable as they have a more "whitish" look than the later cupronickel variety that were minted from 1951,
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