London Transport country district service buses were painted in the green livery, also common to many National Bus Company operating districts.
The Leyland National bus was built in Workington, Cumbria, between 1972 and 1985, this project being a collaboration between British Leyland and the National Bus Company. It was a successful venture, with thousands built, and also exported to many countries around the world, including Australia, the Netherlands, Jamaica, Trinidad & Tobago, and the largest export shipment, 450 buses to Venezuela! Very few remain in service in the UK, but over 100 are preserved.