Currency
The circulating Pound (?1) coin is minted from a nickel-brass alloy of approximately 70% copper, 24.5% nickel, and 5.5% zinc. The coin weighs 9.50 grams and has a diameter of 22.50 millimetres.

The coin was introduced in 1983 to replace the Bank of England One Pound note, which ceased to be issued at the end of 1984 and was removed from circulation (though still redeemable at the Bank's offices) on 11 March 1988.
Production of the ?1 coin has used the normal obverses used by all contemporary British coins, i.e. the effigies of Queen Elizabeth II by Arnold Machin in 1983 and 1984, by Raphael Maklouf between 1985 and 1997, and by Ian Rank_Broadley since 1998. All have had the inscription ELIZABETH II D G REG F D date. An interesting feature of this denomination is that the design of the reverse of the coin changes every year in turn to have an emblem representing the UK, Scotland, Wales, Northern Ireland, and England in turn, together with an appropriate edge inscription, and the value ONE POUND at the bottom of the reverse design.