An RLH is the 'low' double decker isn't it? As far as I'm aware, they were used mainly for the 336 Chesham - Watford service via Amersham.
I only remember travelling to my aunt's place (originally Bourne End, later Boxmoor) in single deck London Transport (green) buses or Rover coaches, I don't recall double deckers on this route.
Last edited by chevvron; 8th Jul 2014 at 14:31.