File talk:W55033 at Colne Valley Railway 2.JPG

Class 121
The unit in this picture, judging from the headcode box, is a class 122 and not a 121. However it is actually a class 121 the small headbox is due to an accident it had whilst in mainline service and it was replaced with a 122 headbox, there is talk of it being replaced back to a 121 headbox, but as it is unique it looks more likely to stay. (source- COLNE VALLEY RAILWAY VOLUNTEER)

Also - the number given (55033) does relate to a Cl.121, but archive shots of that particular unit found on the web confirm that this ISNT IT. its definitely a Cl.122 —Preceding unsigned comment added by 82.1.159.86 (talk) 10:37, 21 March 2010 (UTC)

That's exactly what I thought. Until I found this - so it turns out it is a 121 after all. Still, it doesn't represent what the class normally look like. Tom walker (talk) 10:48, 21 March 2010 (UTC)