British Railways  standard class 7

BR standard class 7

The BR Standard Class 7, otherwise known as the Britannia Class, is a class of 4-6-2 Pacific steam locomotive designed by Robert Riddles for use by British Railways for mixed traffic duties. Fifty-five were constructed between 1951 and 1954. The design was a result of the 1948 locomotive exchanges...

 (also known as Britannia class), number 70000 Britannia is a preserved steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

.
Britannia was built at Crewe

Crewe

Crewe is a railway town within the unitary authority area of Cheshire East and the ceremonial county of Cheshire, England. According to the 2001 census the urban area had a population of 67,683...

, completed on January 2, 1951. She was the first British Railways standard locomotive to be built and the first of 55 locomotives of the Britannia class. The locomotive was named at a ceremony at Marylebone Station

Marylebone station

Marylebone station , also known as London Marylebone, is a central London railway terminus and London Underground complex. It stands midway between the mainline stations at Euston and Paddington, about 1 mile from each...

 by the then Minister for Transport Alfred Barnes on 30 January 1951.

The BR Locomotive Naming Committee were determined not to use names already in use on other locomotives.