Irish pound introduced UK versions. When the UK 5p and 10p coins were reduced in size, the Irish followed suit, but the new Irish 10p was smaller than the new UK version introduced in 1992 and the new Irish 5p was slightly larger than the UK version introduced in 1990. The Irish 50p was never reduced in size (as it had been in the UK in 1997). 31 December 1998, the exchange rates between the European Currency Unit and the Irish pound and 10 other EMS currencies (all but the pound sterling, the Swedish krona and the Danish krone) were fixed. The
Manx pound and there is no guarantee of convertibility beyond that given by the Manx authorities. However, the requirement in the island's Currency Act 1992 for the Isle of Man Treasury to exchange Manx Pound banknotes on demand for Bank of England notes in practice restricts the issue of unbacked currency, and the aggregate total of notes issued must be pre-approved by Tynwald. ISO 4217 does not include a separate currency code for the Manx pound, but where code distinct from GBP is desired, "IMP" is generally used. UK notes and coins (whether from banks in England, Scotland, or Northern Ireland) are