The `box` is the Decca aerial cover,and not usually fitted to non-SAR aircraft /trainers at Ternhill/Valley. The original nose-door had the larger grill panels; then came the `sand-filter cement-mixer` nose door.Then came in `69 the more solid door without the grills.This was a better all weather door,and remained in Service to the end in `82..
Just a point,the WW has a noticeable `bent-back`on all Mks from about 5,and so it is noticeable more or less from all angles except directly above/below. Depending on which Squadron (103/110/28/84/225/230) colours/letters you decide on as always the paint/size of individual colours/reg/Sqdn/zaps were all different,as different Sqdns were in different theatres/Commands/Groups,etc.Try the Rotary threads,or Flypast `Nostalgia` and search Confrontation`...