By 1980 it had become apparent that with the general decline in purchasing power, the £1 unit of currency was more appropriate to a coin than a banknote. After consultation with many groups including retailers and special interest groups, the Government announced on 31 July 1981 that a new £1 coin that was to be issued on 21 April 1983. Since its launch the £1 has always represented the United Kingdom and its constituent parts; England, Wales, Scotland and Northern Ireland.
The £1 coin in base metal (as opposed to the gold sovereign, which has a nominal face value of one pound too), nickel-brass was introduced in 1983, as a replacement for the £1 banknote. The reverse design of the first £1 coin showed a depiction of the Royal Coat of Arms, representing the United Kingdom as a whole. It was issued until 2015 in rotation with other designs representing Scotland, Wales, Northern Ireland and England, alternating each year in that order.
Initially, Scotland was represented by the Thistle and Diadem type of one pound coins, then by the Lion Rampant One Pound, the 2004 Forth Railway Bridge One Pound and the 2011 Edinburgh One Pound.
The last "home countries" £1 coin series depicts pairs of floral emblems of each part of the United Kingdom. This 2014 coin shows the thistle and bluebell to represent Scotland; another one issued the same year represented Northern Ireland.
Coins issued in 2014 circulated for only three years until they were demonetised in 2017 and replaced with the current bimetallic one pound coin. | 
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