The UK’s political parties are closely identified with particular colours – but in some parts of the country they traditionally fought under quite different shades. Three candidates gather on a podium. Each wears a coloured rosette. So far, so humdrum. Except that here it’s the Conservative wearing red, Labour’s candidate in green and the victorious Liberal in blue and orange. This is the general election of February 1974 and the constituency is Berwick-upon-Tweed – one of a number of UK seats where candidates traditionally fought elections in colours other than those typically linked with their parties today.