<P> Brunel and Gooch both gave their locomotives names to identify them, but the standard - gauge companies that became a part of the GWR used numbers . Until 1864 the GWR therefore had named broad - gauge locomotives and numbered standard - gauge ones . From the time of Armstrong's arrival all new locomotives--both broad and standard--were given numbers, including broad - gauge ones that had previously carried names when they were acquired from other railways . Dean introduced a policy in 1895 of giving passenger tender locomotives both numbers and names . Each batch was given names with a distinctive theme, for example kings for the 6000 class and castles for the 4073 class . </P> <P> The GWR first painted its locomotives a dark holly green but this was changed to middle chrome or Brunswick green for most of its existence . They initially had chocolate brown or Indian red frames but this was changed in the twentieth century to black . Name and number plates were generally of polished brass with a black background, and chimneys often had copper rims or "caps". </P> <P> Liveries through the years: </P> <Ul> <Li> <P> Iron Duke's tender: Holly green with pea green lining </P> </Li> <Li> <P> City of Truro: Middle Chrome green, orange lining and red frames </P> </Li> <Li> <P> Nunney Castle: Middle Chrome green, orange lining and black frames </P> </Li> <Li> <P> 3850: Middle Chrome green, black frames but no lining </P> </Li> </Ul>

Where does the great western railway start and end