Steam locomotives of British Railways

The steam locomotives of British Railways were used by British Railways over the period 1948-1968.  The majority of these were inherited from the Big Four British railway companies. In the 1950s, new British Railways Standard steam locomotives were introduced.

Numbering
BR locomotives were numbered in the following series:
 1 series, former Great Western Railway steam locomotives
 10,000 series, diesel locomotives and electric locomotives
 30,000 series, former Southern Railway steam locomotives
 40,000 and 50,000 series, former London, Midland and Scottish Railway steam locomotives
 60,000 series, former London and North Eastern Railway steam locomotives
 70,000 series, British Railways Standard steam locomotives
 90,000 series, former War Department steam locomotives (originally in 70,000 series)
 92,000 series, BR Standard Class 9F

Steam locomotives