Manx pound for the island since 1865. In 1971 the United Kingdom moved to a decimal currency, with the pound subdivided into 100 pence. The Isle of Man Government, having issued its own banknotes for ten years, took the opportunity to approach the Royal Mint and request its own versions of the decimal coins, which were introduced in 1971. The "Murrey Pennies" of 1668 were the first to depict the 'triskeles' symbol and the Island motto ""Quocunque Gesseris Stabit"" (sic), both of which have continued to feature on Manx coinage until the present day (the motto was corrected to ""Quocunque Jeceris Stabit""
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