I remember travelling on a RLH at Clapton/Hackney somewhere on a Red Rover one summertime in the late sixties I suppose. It had 3 seats on one side and a single one on the other, with a sort of trough for a passageway- upstairs of course. Probably what got me interested in buses all these years. And possibly same day in Bromley area - on way to Chislehurst Caves advertised on Radio Caroline, the conductor saw me photing his RF and he showed me how to take pictures inside, using his driver as a model. Can't find those photos though.
I also remember when a later single decker ended up in Clapton Pond too.