IF you can get to the National Maritime Museum there is a set of 6 (?) bound volumes of photos taken at the time of her completion, covering topsides and all (?) internal compartments.
I believe ( a phone call would sort it out ) that they are held by the Caird Library at Greenwich, BUT they could be with the Ships cover at the Brass Foundry, Woolwich.
Looking at those "should" sort out any problems for one particular time period.