Prior to its uniform adoption of proportional representation in 1999, the United Kingdom used first-past-the-post for the European elections in England, Scotland and Wales. The European Parliament constituencies used under that system were smaller than the later regional constituencies and only had one Member of the European Parliament each. The constituency of Surrey was one of them. It was split in 1984, with the eastern half merging with London South as London South and Surrey East and the rest becoming Surrey West. More information on the Wikipedia page [1]