Good stuff. And those lamps again - in all the years I've 'been around' Spits, and modelled them and painted them, I've mostly missed these lamps in my 'studies' - until mentioned in Karl's MkXII thread. B*gg*er !
Looked into this a bit more, and it seems the fittings were there, but often blanked off or painted over, depending on requirements presumably. A case of checking refs for the particular subject in future, and it seems you can teach an old dog new tricks!